Sir Robert Constable (c. 1478 – 6 July 1537) was a member of the English Tudor gentry. He helped Henry VII to defeat the Cornish rebels at the Battle of Blackheath in 1497. In 1536, when the rising known as the Pilgrimage of Grace broke out in the north of England, Constable was one of the insurgent leaders, but towards the close of the year, he submitted at Doncaster and was pardoned. He did not share in the renewal of the rising, Bigod's rebellion, which took place in January 1537; but he refused the king's invitation to proceed to London, and was arrested, tried for treason, and hanged at Hull in the following June.[1]