================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13D/A
                                 (Rule 13d-101)

                               (Amendment No. 15)

                                   ----------

                              TELECOM ITALIA S.p.A.
                                (Name of Issuer)

   Ordinary Shares of euro 0.55 par value each                     87927W10
        (Title of class of securities)                          (CUSIP number)

                                Dott. Gianni Mion
                             Edizione Holding S.p.A.
                                 Calmaggiore 23
                                  31100 Treviso
                                      Italy
                                 (+39) 0422-5995

                                 With a copy to:

                           Michael S. Immordino, Esq.
                                Latham & Watkins
                                 99 Bishopsgate
                                 London EC2M 3XF
                                     England
                               (+44) 207-710-1076
            (Name, address and telephone number of person authorized
                     to receive notices and communications)

                                  May 24, 2003
             (Date of event which requires filing of this statement)

     If the filing person has previously filed a statement on Schedule 13G to
report the acquisition that is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the
following box [ ].

          Note: Schedules filed in paper format shall include a signed original
     and five copies of the schedule, including all exhibits. See Rule 13d-7 for
     other parties to whom copies are to be sent.

                         (Continued on following pages)


                                  (Page 1 of 9)







                                                               
-----------------------------------------------------------          -------------------------------------------------
CUSIP No.  87927W10                                            13D
-----------------------------------------------------------          -------------------------------------------------

-----------------------   --------------------------------------------------------------------------------------------
1                         NAME OF REPORTING PERSON                         EDIZIONE HOLDING S.p.A.
                          I.R.S. IDENTIFICATION NO.                        Not Applicable
                          OF ABOVE PERSON
-----------------------   --------------------------------------------------------------------------------------------
2                         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:                          (a)   [X]
                                                                                                     (b)   [ ]
-----------------------   --------------------------------------------------------------------------------------------
3                         SEC USE ONLY
-----------------------   --------------------------------------------------------------------------------------------
4                         SOURCE OF FUNDS:                                                 WC
-----------------------   --------------------------------------------------------------------------------------------
5                         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                          PURSUANT TO ITEM 2(d) OR 2(e):                                                   [ ]
-----------------------   --------------------------------------------------------------------------------------------
6                         CITIZENSHIP OR PLACE OF ORGANIZATION:                            Italy
-----------------------   --------------------------------------------------------------------------------------------
NUMBER OF                 7                     SOLE VOTING POWER:                         0
SHARES
                          -------------------   ----------------------------------------------------------------------
                          8                     SHARED VOTING POWER:                       2,891,656,682
BENEFICIALLY                                                                               (See Item 5)
OWNED BY                  -------------------   ----------------------------------------------------------------------
                          9                     SOLE DISPOSITIVE POWER:                    0
EACH
REPORTING                 -------------------   ----------------------------------------------------------------------
                          10                    SHARED DISPOSITIVE POWER:                  2,891,656,682
                                                                                           (See Item 5)
PERSON WITH
-----------------------   --------------------------------------------------------------------------------------------
11                        AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON:         2,891,656,682
                                                                                           (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
12                        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:                 [ ]
-----------------------   --------------------------------------------------------------------------------------------
13                        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):                             54.96%
                                                                                                          (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
14                        TYPE OF REPORTING PERSON:                             CO



                                    (Page 2)







                                                               
-----------------------------------------------------------          -------------------------------------------------
CUSIP No.  87927W10                                            13D
-----------------------------------------------------------          -------------------------------------------------

-----------------------   --------------------------------------------------------------------------------------------
1                         NAME OF REPORTING PERSON                         EDIZIONE FINANCE INTERNATIONAL S.A.
                          I.R.S. IDENTIFICATION NO.                        Not Applicable
                          OF ABOVE PERSON
-----------------------   --------------------------------------------------------------------------------------------
2                         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:                          (a)   [X]
                                                                                                     (b)   [ ]
-----------------------   --------------------------------------------------------------------------------------------
3                         SEC USE ONLY
-----------------------   --------------------------------------------------------------------------------------------
4                         SOURCE OF FUNDS:                                                 WC
-----------------------   --------------------------------------------------------------------------------------------
5                         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                          PURSUANT TO ITEM 2(d) OR 2(e):                                                   [ ]
-----------------------   --------------------------------------------------------------------------------------------
6                         CITIZENSHIP OR PLACE OF ORGANIZATION:                            Italy
-----------------------   --------------------------------------------------------------------------------------------
NUMBER OF                 7                     SOLE VOTING POWER:                         0
SHARES
                          -------------------   ----------------------------------------------------------------------
                          8                     SHARED VOTING POWER:                       2,891,656,682
BENEFICIALLY                                                                               (See Item 5)
OWNED BY                  -------------------   ----------------------------------------------------------------------
                          9                     SOLE DISPOSITIVE POWER:                    0
EACH
REPORTING                 -------------------   ----------------------------------------------------------------------
                          10                    SHARED DISPOSITIVE POWER:                  2,891,656,682
                                                                                           (See Item 5)
PERSON WITH
-----------------------   --------------------------------------------------------------------------------------------
11                        AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON:         2,891,656,682
                                                                                           (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
12                        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:                 [ ]
-----------------------   --------------------------------------------------------------------------------------------
13                        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):                             54.96%
                                                                                                          (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
14                        TYPE OF REPORTING PERSON:                             CO



                                    (Page 3)







                                                               
-----------------------------------------------------------          -------------------------------------------------
CUSIP No.  87927W10                                            13D
-----------------------------------------------------------          -------------------------------------------------

-----------------------   --------------------------------------------------------------------------------------------
1                         NAME OF REPORTING PERSON                         RAGIONE S.a.p.a. DI GILBERTO BENETTON E C.
                          I.R.S. IDENTIFICATION NO.                        Not Applicable
                          OF ABOVE PERSON
-----------------------   --------------------------------------------------------------------------------------------
2                         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:                          (a)   [X]
                                                                                                     (b)   [ ]
-----------------------   --------------------------------------------------------------------------------------------
3                         SEC USE ONLY
-----------------------   --------------------------------------------------------------------------------------------
4                         SOURCE OF FUNDS:                                                 WC
-----------------------   --------------------------------------------------------------------------------------------
5                         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                          PURSUANT TO ITEM 2(d) OR 2(e):                                                   [ ]
-----------------------   --------------------------------------------------------------------------------------------
6                         CITIZENSHIP OR PLACE OF ORGANIZATION:                            Italy
-----------------------   --------------------------------------------------------------------------------------------
NUMBER OF                 7                     SOLE VOTING POWER:                         0
SHARES
                          -------------------   ----------------------------------------------------------------------
                          8                     SHARED VOTING POWER:                       2,891,656,682
BENEFICIALLY                                                                               (See Item 5)
OWNED BY                  -------------------   ----------------------------------------------------------------------
                          9                     SOLE DISPOSITIVE POWER:                    0
EACH
REPORTING                 -------------------   ----------------------------------------------------------------------
                          10                    SHARED DISPOSITIVE POWER:                  2,891,656,682
                                                                                           (See Item 5)
PERSON WITH
-----------------------   --------------------------------------------------------------------------------------------
11                        AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON:         2,891,656,682
                                                                                           (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
12                        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:                 [ ]
-----------------------   --------------------------------------------------------------------------------------------
13                        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):                             54.96%
                                                                                                          (See Item 5)
-----------------------   --------------------------------------------------------------------------------------------
14                        TYPE OF REPORTING PERSON:                             PN



                                    (Page 4)






     This Amendment No. 15 amends the Statement on Schedule 13D dated August 9,
2001, as amended (as previously amended, the "Statement on Schedule 13D") filed
by Edizione Holding S.p.A., a company incorporated under the laws of the
Republic of Italy ("Edizione Holding"), Edizione Finance International S.A., a
company incorporated in the Duchy of Luxembourg ("Edizione Finance"), and
Ragione S.a.p.a. di Gilberto Benetton e C., a partnership organized under the
laws of the Republic of Italy ("Ragione") (Edizione Holding, Edizione Finance
and Ragione, are collectively referred to herein as the "Edizione Reporting
Persons") with respect to the ordinary shares, euro 0.55 par value per share, of
Telecom Italia S.p.A., a company incorporated under the laws of the Republic of
Italy. Capitalized terms used in this Amendment without definition have the
meanings ascribed to them in the Statement on Schedule 13D.

     This Amendment is being filed by each of the Edizione Reporting Persons.
Pirelli, the Purchaser, Edizione Holding, UCI, BCI, and, as discussed in Items 4
and 6 of Amendment No. 10 to the Statement on Schedule 13D, Hopa are members of
a group with respect to the Telecom Italia Shares. The Edizione Reporting
Persons are making a separate filing on Schedule 13D in accordance with Rule
13d-1(k)(2) under the Securities Exchange Act of 1934 and are responsible solely
for the information contained in this filing, except that information contained
in the Statement on Schedule 13D concerning any director or officer of the
Purchaser nominated by Pirelli, UCI, BCI or Hopa has been provided by the
nominating person.

Item 4. Purpose of Transaction

     A shareholders' meeting of Telecom Italia held on May 24, 2003 resolved to
approve the Olivetti Merger (as that term is defined in Amendment No. 12 to the
Statement on Schedule 13D). A copy of a press release issued by Telecom Italia
concerning, inter alia, the approval of the Olivetti Merger by Telecom Italia's
shareholders is filed as Exhibit 35. A shareholders' meeting of Olivetti held on
May 26, 2003 also resolved to approve the Olivetti Merger.

Item 7. Material to be Filed as Exhibits

35.  Press release of Telecom Italia S.p.A., dated as of May 24, 2003


                                    (Page 5)






                                    SIGNATURE

     After reasonable inquiry and to the best knowledge and belief of the
undersigned, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

     Date: June 2, 2003

                                              EDIZIONE HOLDING S.p.A.


                                              By: /s/ Gianni Mion
                                                  ------------------------------
                                                  Name:  Gianni Mion
                                                  Title: Chief Executive Officer


                                    (Page 6)






                                    SIGNATURE

     After reasonable inquiry and to the best knowledge and belief of the
undersigned, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

     Date: June 2, 2003

                                             EDIZIONE FINANCE INTERNATIONAL S.A.


                                                By: /s/ Gustave Stoffel
                                                    ----------------------------
                                                    Name:  Gustave Stoffel
                                                    Title: Director


                                    (Page 7)






                                    SIGNATURE

     After reasonable inquiry and to the best knowledge and belief of the
undersigned, the undersigned certifies that the information set forth in this
statement is true, complete and correct.

     Date: June 2, 2003

                                             RAGIONE S.a.p.a DI GILBERTO
                                                BENETTON E C.


                                             By: /s/ Gilberto Benetton
                                                 ------------------------------
                                                 Name:  Gilberto Benetton
                                                 Title: Chairman


                                    (Page 8)






                                  EXHIBIT INDEX

35. Press release of Telecom Italia S.p.A., dated as of May 24, 2003


                                    (Page 9)


                           STATEMENT OF DIFFERENCES

The section symbol shall be expressed as..............................'SS'