Daniel Chatto married which grandchild of King George VI?
Lady Sarah Chatto Lady Sarah Frances Elizabeth Chatto (née Armstrong-Jones; born 1 May 1964) is the only daughter of Princess Margaret, Countess of Snowdon, and the 1st Earl of Snowdon. She is a niece of Queen Elizabeth II and the youngest grandchild of King George VI and Queen Elizabeth The Queen Mother.
Sylvana Tomaselli Sylvana Palma Windsor, Countess of St Andrews ("née" Sylvana Palma Tomaselli, previously Jones; 28 May 1957) is an academic and the wife of the Earl of St Andrews, elder son and heir of Prince Edward, Duke of Kent. A historian at the University of Cambridge, she is usually known professionally as Dr Sylvana Tomaselli.