William Cavendish, 1st Duke of Newcastle upon Tyne, KG, KB, PC (c. 16 December 1593 – 25 December 1676) was an English courtier and supporter of the arts. He was a renowned horse breeder, as well as being patron of the playwright Ben Jonson, and the intellectual group known as the Welbeck Circle. He returned to England after the Stuart Restoration in 1660, and although created Duke of Newcastle in 1665, he remained on the fringes of the court, and became critical of Charles II. He died in 1676, and was buried in Westminster Abbey.