Robert Brudenell British politician (1726–1768) Parents Elizabeth Brudenell, Countess of Cardigan George Brudenell, 3rd Earl of Cardigan Children unknown daughter Brudenell unknown daughter Brudenell Robert Brudenell, 6th Earl of Cardigan Siblings George Montagu, 1st Duke of Montagu Thomas Brudenell-Bruce, 1st Earl of Ailesbury Lady Mary Brudenell Lady Frances Brudenell James Brudenell, 5th Earl of Cardigan Partners Anne Bishopp