 Henry Heathcote, fourth son of the third baronet, received a knighthood and became an admiral in the Royal Navy, while Gilbert Heathcote, youngest son of the third baronet, also had a naval career, becoming a post-captain.The first Baronet married Lady Elizabeth Parker, only daughter of Thomas Parker, 1st Earl of Macclesfield.The earldom of Macclesfield and its subsidiary title the viscountcy of Parker had been created with remainder, in default of male issue, to the Earl's daughter Elizabeth and the heirs male of her body.