William Cavendish studied at St. John's College Cambridge (M.A. 1608). He was knighted in 1626, created Viscount Mansfield (1620), Earl of Newcastle (1628), Marquis of Newcastle (1643), and Duke of Newcastle (1665). A royalist who financed and fought in the civil wars, Cavendish was rewarded for his services by being made Knight of the Garter during his years abroad. In 1648 he married Margaret Lucas, the celebrated and adoring Duchess of Newcastle. Cavendish was the patron of Ben Jonson before the interregnum and John Dryden afterwards.
The country captaine, and Varietie: two comedies. 1649.
Sir Martin Mar-all [with Dryden]. 1668.
The triumphant widow: or the medley of humours [with Shadwell] 1677.