House of FitzEustace

Cadet branch of the House of La Poer

• Coat of Arms
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  House of FitzEustace
  Lords of Portlester and Castlemartin
  Last male member of this family was Rowland FitzEustace, 1st Baron Portlester who died without legitimate male issue

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  House of FitzEustace
  Lords of Portlester and Castlemartin
  Alternative arms variant

• Cadet Branches
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  House of Eustace
  Lords of Kilcullen and Baltinglass
  Barons Kilcullen
  Viscounts Baltinglass