Fitzwilliam Name Meaning & Origin
Fitzwilliam
Origin of the name William:
From the Old Norman French Willaume, which is derived from the Old High German Willehelm, a compound name composed from the elements willeo (will, determination) and helm (protection, helmet): hence, "resolute protector." William is the most popular name introduced to England by the Normans. It was borne by William the Conqueror (1027? - 87), who invaded England and defeated Harald at the Battle of Hastings, and by three other kings of England.
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US Popularity of Fitzwilliam Over Time

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Classic and masculine.
There is a Fitzwilliam College at the University of Cambridge in England. The Fitzwilliam Museum is the art and antiquities museum at the same University.
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Anglo-Norman surname meaning, "son of William." Surnames that contain the prefix Fitz- were to distinguish the illegitimate children of royalty.
Pronounce: fits-WIL-yuhm- Famous real-life people named Fitzwilliam
- Fitzwilliam in song, story & screen
Fitzwilliam Darcy, of Jane Austen's Pride and Prejudice.