Mark Dent Brocklehurst

Geoffrey Mark Dent-Brocklehurst (25 April 1932 – September 1972) was a stockbroker and the heir to Sudeley Castle. He was the son of Major John Henry Dent-Brocklehurst and his wife Mary (née Morrison). Via his paternal grandmother, Marion Lascelles, he is a descendant of Henry Lascelles, 3rd Earl of Harewood. Thus he was a third cousin of George Lascelles, 7th Earl of Harewood. Michael Hicks Beach, 2nd Earl St Aldwyn, whose mother was Marjorie Brocklehurst, was his first cousin.

Dent-Brocklehurst died suddenly from a heart attack in 1972. The castle passed to his wife Mary Elizabeth (née Chipps), and their two children, Henry and Mollie. His wife remarried Henry Cubitt, 4th Baron Ashcombe, in 1979.