William Wentworth-Fitzwilliam, Viscount Milton English nobleman and politician (1812–1835) Parents Charles Wentworth-Fitzwilliam, 5th Earl Fitzwilliam Mary Dundas Children Mary FitzWilliam Siblings George Wentworth-FitzWilliam Anne Wentworth Fitzwilliam Charles Wentworth-FitzWilliam Lady Frances Laura Wentworth FitzWilliam Albreda Elizabeth Fitzwilliam William Wentworth-Fitzwilliam, 6th Earl Fitzwilliam Partners Lady Selina Jenkinson