Last name Fitzmaurice (Fitzmaurice 
) , all around the world, is quite a common cognomen. The surname Fitzmaurice is habitual in Northern Europe, particularly Isle of Man, where it is quite a common surname, Ireland, and the United Kingdom, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Ireland.
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| Fitzmaurice | Canada, Australia, United States, United Kingdom, Ireland |
| gerald fitzmaurice, 1st lord of offaly Cambro-Norman nobleman, IE (b. 1150) |
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| thomas fitzmaurice, 16th baron kerry youngest son of Edmund Fitzmaurice (b. 1502) |
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| james fitzmaurice Roman Catholic bishop (b. 1510) |
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| patrick fitzmaurice Irish noble (b. 1551) |
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| thomas fitzmaurice, 18th baron kerry Irish noble (b. 1574) |
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| patrick fitzmaurice, 17th baron of kerry and lixnaw (born 1595) (b. 1595) |
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| william fitzmaurice, 20th baron kerry Irish nobleman, politician, and peer (b. 1633) |
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| thomas fitzmaurice, 1st earl of kerry Irish politician (b. 1668) |
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| james fitzmaurice (born 1670) (b. 1670) |
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| hon. william fitzmaurice (1670-1710) (b. 1670) |
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| william fitzmaurice, 2nd earl of kerry Irish noble (b. 1694) |
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| anne fitzmaurice (born 1700) (b. 1700) |
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| william fitzmaurice (born 1706) (b. 1706) |
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| garrett fitzmaurice (born 1724) (b. 1724) |
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| john fitzmaurice (born 1725) (b. 1725) |
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