William Knox Church of Ireland bishop (1762–1831) Parents Anne Vesey Thomas Knox, 1st Viscount Northland Children Frances Letitia Knox Selina Elizabeth Knox Elizabeth Selina Knox Isabella Charlotte Knox Emily Lavinia Knox Henrietta Mary Octavia Knox James Spencer Knox Helen Adelaide Knox William Knox Siblings George Knox John Knox Charles Knox Thomas Knox, 1st Earl of Ranfurly Vesey Knox Edmund Knox Partners Anne Spencer