Lansdowne [M] Created: 6th Dec 1784 Expired:
William Petty FitzMaurice
(Carteret , FitzPatrick ) 1737 - 18052. John Henry Petty FitzMaurice
1765 - 18093. Henry Petty-FitzMaurice
(Fox-Strangways ) 1780 - 18634. Henry Petty-FitzMaurice
(Elphinstone de Flahault ) 1816 - 18665. Henry Charles Keith Petty-FitzMaurice
(Hamilton ) 1845 - 1927
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