Viscount FitzWilliam
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The title Viscount FitzWilliam, of Merrion in the County of Dublin, was created in the Peerage of Ireland in 1629 for Thomas FitzWilliam, along with the title Baron FitzWilliam, of Thorncastle in the County of Dublin. The 2nd Viscount was created Earl of Tyrconnell in 1661; on his death the Earldom became extinct while the Viscountcy and Barony passed to William FitzWilliam. Both titles became extinct on the death of the 9th Viscount in 1833.
This title has no direct relationship with the Earldom of FitzWilliam.
[edit] Viscounts FitzWilliam (1629)
- Thomas FitzWilliam, 1st Viscount FitzWilliam (1581–1650)
- Oliver FitzWilliam, 1st Earl of Tyrconnell, 2nd Viscount Fitzwillian (d. 1667)
- William FitzWilliam, 3rd Viscount FitzWilliam (d. 1670)
- Thomas FitzWilliam, 4th Viscount FitzWilliam (d. 1704)
- Richard FitzWilliam, 5th Viscount FitzWilliam (1677–1743)
- Richard FitzWilliam, 6th Viscount FitzWilliam (1711–1776)
- Richard FitzWilliam, 7th Viscount FitzWilliam (1745–1816)
- John FitzWilliam, 8th Viscount FitzWilliam (1752–1830)
- Thomas FitzWilliam, 9th Viscount FitzWilliam (1755–1833)
