sentences:  The Grimston estates passed to his great-nephew William Luckyn, who assumed the surname of Grimston and was created Viscount Grimston in 1719.He was the ancestor of the Earls of Verulam.The Grimston Baronetcy, of Westbury in the County of Wiltshire, was created on 11 March 1952 for Robert Grimston, a grandson of the second Earl of Verulam.