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EXHIBIT 21.1

Significant Subsidiaries of Hollinger
International Inc.

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|A.  U.S. GROUPHTNM LLC
        Hollinger International Publishing Inc.
        HGP Partnership
        Alliance News, Inc.
        American Publishing Company
        Fox Valley Publications, Inc.
        The Post-Tribune Company
        Oklahoma Airplane LLC
        3016296 Nova Scotia Company
        Hollinger (Challenger) Holdings Co. (Nova Scotia)
        Jerusalem Post Employees Holding (1983) Ltd.
        The Palestine Post Limited
        Jerusalem Post Publications Limited
        HTH BenHoldco Inc.
        HTH Holdings Inc.
        Reach Chicago, Inc.
        The Sun-Times Company
        Chicago Group Acquisition, Inc.
        Chicago Sun-Times, Inc.
        Digital Chicago Inc.
        LHAT Inc.
        Telegraph Australian Holdings Limited
        Midwest Suburban Publishing Inc.
        Pioneer Newspapers Inc.B.  U.K. GROUPHollinger UK Holdings Limited (England)
        DT Holdings Limited (England)
        First DT Holdings Limited (England)
        Second DT Holdings Limited
        HTNM Ventures Limited (England)
        Telegraph Group Limited (England)
        The Spectator (1828) Limited (England)
        Deedtask Limited (England)
        Creditscheme Limited (England)
        Hollinger Telegraph New Media Holdings  Limited
        (England)
        UKMAX Limited (England)
        Hollinger Telegraph New Media Limited (England)
        Electronic Telegraph Limited (England) |  | C.  CANADIAN GROUPHIF Corp. [Nova Scotia]
        Hollinger International (Canada) Holdings Co.   [Nova
        Scotia]
        HC Holdings Company [Nova Scotia]
        Hollinger Canadian Publishing Holdings Co.   [Nova
        Scotia]  (formerly Hollinger Canadian Publishing Holdings
        Inc.  and XSTM Holdings
        (2000) Inc.)
        Hollinger Canadian Newspapers G.P. Inc.
        Hollinger Canadian Newspapers,  Limited
        Partnership
        Hollinger Digital Inc. (Delaware)
        NP Holdings Company [Nova Scotia]
        Hollinger Canadian Operating Company   [Nova
        Scotia]
        150275 Canada Inc.
        923896 Ontario Inc.
        KCN Capital News Company (B.C.)  (formerly Kelowna
        Capital News Company)
        XSTM Holdings Corp.  (formerly, Southam Holdings
        Corporation)
        XSTM BusComm USA Inc. (formerly,  Southam Business
        Communications USA Inc.)
        Ecolog Environmental Risk Information  Services
        Ltd.
        Great West Newspaper Group Ltd.
        XSTM Graphics Inc.  (formerly Southam Graphics
        Inc.)
        HTPC Corporation (Maryland)
        Fundata Canada Inc.