She is married to Willem Cavendish Hertog van Devonshire.
They got married on March 27, 1718, she was 18 years old.
Child(ren):
Catherine Hoskins was the daughter of John Hoskins and Catherine Hale. She married Sir William Cavendish, 3rd Duke of Devonshire, son of Sir William Cavendish, 2nd Duke of Devonshire and Rachel Russell, on 27 March 1718. She died on 8 May 1777.
Her married name became Cavendish. As a result of her marriage, Catherine Hoskins was styled as Duchess of Devonshire on 4 June 1729
http://www.thepeerage.com/p956.htm#i9554
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