Lady Maria Windsor (1790-1855) (1790–1855) Parents Other Windsor, 5th Earl of Plymouth Sarah Amherst Children Lady Charlotte Hill Arthur Hill, 4th Marquess of Downshire Lord William Frederick Arthur Montagu Hill Lady Mary Penelope Hill Edwin Hill-Trevor, 1st Baron Trevor Siblings Other Windsor, 6th Earl of Plymouth Harriet Windsor-Clive William Amherst, 2nd Earl Amherst Jeffrey Amherst Sarah Elizabeth Hay-Williams Frederick Campbell Amherst Partners Arthur Hill, 3rd Marquess of Downshire