Lady Margaret Perceval (died 1854) (1769–1854) Parents Catherine Compton, Baroness Arden John Perceval, 2nd Earl of Egmont Children John Vade-Walpole Spencer Horatio Walpole Robert Walpole Charles Vade-Walpole Catherine Margaret Walpole Thomas Walpole Sophia Frances Walpole Siblings Charles Perceval, 2nd Baron Arden Spencer Perceval Lady Frances Perceval Lady Mary Perceval Edward Perceval Cecil Parker Perceval John Perceval, 3rd Earl of Egmont Lady Catherine Egmont Perceval Philip Tufton Perceval Frederick Augustus Perceval Partners Thomas Walpole