Corbet was the son of Sir John Corbet, 1st Baronet of Sprowston, Norfolk, MP for Great Yarmouth from 1625 to 1629.
Corbet was the son of Sir Thomas Corbet of Sprowston, Norfolk. He was the younger brother of Sir John Corbet, 1st Baronet, MP for Great Yarmouth from 1625 to 1629.