Baroness Howard de Walden & Susan Buchan

Landowner and philanthropist 

Lady Howard de Walden, 86, oversees the Howard de Walden Estate, which owns the freehold of much of Marylebone in London. She is perhaps best known for her prohibition of abortion clinics on Harley Street in 2007. Her sister Susan Buchan is a Dame of Malta and a generous supporter of Catholic causes.

The Duke of Norfolk

Earl Marshal

The Dukes of Norfolk are traditionally the most senior lay figures in the Catholic Church in Britain; their hereditary ceremonial duties include the organisation of royal funerals and coronations. Edward Fitzalan-Howard, the 18th duke, is president of the Friends of Arundel Cathedral and a trustee of the Oxford and Cambridge Catholic Education Board.