Lady Katherine Cust (1822-1885) (1822–1885) Parents Caroline Fludyer John Cust, 1st Earl Brownlow Children Katherine Elizabeth Onslow Emily Marian Onslow Mary Katherine Onslow Siblings Lady Caroline Cust Lady Sophia Cust Charles Cust John Egerton, Viscount Alford Partners Arthur Onslow, Viscount Cranley