Lady Catherine Sydney Windsor (1755-1823) (1755–1823) Parents Catherine Archer Other Windsor, 4th Earl of Plymouth Children Dorothy Tylney-Long Emma Tylney-Long Catherine Tylney-Long Sir James Tylney-Long, 8th Bt. Siblings Thomas Windsor Henry Windsor, 8th Earl of Plymouth Lady Sarah Windsor Lady Anne Windsor Andrews Windsor, 7th Earl of Plymouth Lady Elizabeth Windsor Other Windsor, 5th Earl of Plymouth Partners Sir James Tylney-Long, 7th Baronet