United States
                              Securities and Exchange Commission
                                    Washington, D.C. 20549


                                        SCHEDULE 13D

                          Under the Securities Exchange Act of 1934
                                      (Amendment No. 18)

                          John Hancock Patriot Global Dividend Fund
                                      (Name of Issuer)


                                         Common Stock
                               (Title of Class of Securities)


                                         41013G-10-3
                                       (CUSIP Number)



                                  The Commerce Group, Inc.
                                       211 Main Street
                                      Webster, MA 01570
                                       (508) 943-9000
                        (Name, Address and Telephone Number of Person
                      Authorized to Receive Notices and Communications)



                                      July 17, 2006
                   (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 Section 240. Rule 13d-1(e), 240.13d-1(f) or
240.13d-1(g), check the following box:    [  ]

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).










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CUSIP No.: 41013G-10-3                      THE COMMERCE GROUP, INC.
                                            SCHEDULE 13D
                                            AMENDMENT No. 18
                                            JULY 27, 2006




1.       NAME OF REPORTING PERSON
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         The Commerce Group Inc.
         ID# 04-2599931

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                          (a) [  ]
                                                          (b) [  ]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS                                      [WC]

5        CHECK IF DISCLOSURE OF LEGAL                         [  ]
         PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

         Massachusetts

         NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

7.       SOLE VOTING POWER                             1,859,800
8.       SHARED VOTING POWER                                 0
9.       SOLE DISPOSITIVE POWER                        1,859,800
10.      SHARED DISPOSITIVE POWER                            0

11.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,859,800

12.      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES    [    ]

13.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         22.3%

14.      TYPE OF REPORTING PERSON
         [HC]













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CUSIP No.: 41013G-10-3                      THE COMMERCE GROUP, INC.
                                            SCHEDULE 13D
                                            AMENDMENT No. 18
                                            JULY 27, 2006


ITEM 1.  SECURITY AND ISSUER

     This Schedule 13D relates to the shares of beneficial interest (the
"Shares"), of John Hancock Patriot Global Dividend Fund (the "Fund"), a
Massachusetts business trust registered as an investment company under the
Investment Company Act of 1940, as amended (the "Investment Company Act").
The principal executive offices of the Fund are located at 601 Congress
Street, Boston, MA 02210.


ITEM 2.  IDENTITY AND BACKGROUND

     (a) - (c) This Schedule 13D is being filed by The Commerce Group Inc.
(the "Reporting Person"), a corporation formed under the laws of
Massachusetts.  The Reporting Person is a corporation whose principal offices
are located at 211 Main Street, Webster, MA 01570.

     (d)   During the last five years, the Reporting Person has not been
convicted in any criminal proceedings (excluding traffic violations or
similar misdemeanors).

     (e)   During the last five years, the Reporting Person has not been
party to a civil proceeding of a judicial or administrative body of competent
jurisdiction and as a result of such proceedings was or is subject to a
judgment, decree or final order enjoining future violations of, or
prohibiting or mandating activity subject to, federal or state securities
laws or finding any violation with respect to such laws.


ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

     The source of the funds used by the Reporting Person to purchase shares
listed in Item 5(a) was working capital.  The amount of the funds used to
purchase such shares aggregated approximately $1,067,626.


ITEM 4.  PURPOSE OF TRANSACTION

     No material change has taken place since the previous filing.


ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

     (a) The Fund's reports with the Securities and Exchange Commission
report that 8,344,700 Shares are outstanding.  Based upon such number, the
Reporting Person beneficially owns 22.3% of the Fund's outstanding Shares.

     (b) The Reporting Person is the beneficial owner (through its insurance
subsidiaries as listed below) of 1,859,800 shares, over which it has sole
power of disposition and voting.  Such number of Shares represents
approximately 22.3% of the outstanding Shares.

                                             Shares               Cost

   The Commerce Insurance Company           1,859,800          $21,501,668

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CUSIP No.: 41013G-10-3                      THE COMMERCE GROUP, INC.
                                            SCHEDULE 13D
                                            AMENDMENT No. 18
                                            JULY 27, 2006



     (c) During the period from December 28, 2005 through July 17, 2006, the
Reporting Person has effected the following sales of Common Stock, all of
which were made on the New York Stock Exchange (see attached Annex A).


     (d) No person other than the Reporting Person has the right to receive
or the power to direct the receipt of dividends from, or the proceeds from
the sale of, the shares of Common Stock owned by the Reporting Person.

     (e) Not applicable.



ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
         WITH RESPECT TO SECURITIES OF THE ISSUER

     The Reporting Person does not have any contract, arrangement,
understanding or relationship (legal or otherwise) with any person with
respect to any securities of the Fund, including, but not limited to, the
transfer or voting of any such securities, finders' fees, joint ventures,
loan or option arrangements, puts or calls, guarantees of profits, division
of profits or loss, or the giving or withholding of proxies.


ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

    Annex A   Item 5(c) Information






                                          SIGNATURE


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


July 27, 2006                             THE COMMERCE GROUP INC.







                                      /s/ John M. Meciak
                                          John M. Meciak
                                          Assistant Treasurer


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ANNEX  A
Item 5 (c) - Information


  FROM 12/28/2005 - 07/17/06

PGD        41013G-10-3    JOHN HANCOCK PATRIOT GLOBAL DIVIDEND FUND


COMMERCE INSURANCE CO
     PURCHASES
  TRADE           SETTLEMENT        SHARES           PRICE              ACQUISITION
  DATE              DATE          PURCHASED        PER SHARE               COST
                                                                 
01/17/06         01/20/06           1,200          $12.06             $   14,517.00
06/07/06         06/12/06           3,800           11.60                 44,195.90
06/08/06         06/13/06           7,700           11.53                 89,016.62
06/09/06         06/14/06           3,300           11.49                 38,039.43
06/12/06         06/15/06          11,400           11.62                132,894.36
06/13/06         06/16/06           6,800           11.60                 79,111.88
06/14/06         06/19/06          10,000           11.65                116,849.00
06/15/06         06/20/06           8,900           11.65                103,956.45
06/16/06         06/21/06           3,400           11.82                 40,307.00
06/19/06         06/22/06           7,200           11.76                 84,888.72
06/20/06         06/23/06           3,700           11.74                 43,549.37
06/21/06         06/26/06             200           11.65                  2,337.00
06/22/06         06/27/06           2,400           11.68                 28,105.92
06/27/06         06/30/06           5,100           11.75                 60,098.40
07/05/06         07/10/06           3,900           11.35                 44,388.63
07/13/06         07/18/06           8,100           11.54                 93,741.30
07/14/06         07/19/06           2,900           11.52                 33,509.50
07/17/06         07/20/06           1,600           11.29                 18,120.00

TOTALS:                            91,600                             $   1,067,626






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