William Bayntun (1717—1785) was a barrister who resided at Gray’s Inn. He was admitted to Gray’s Inn in 1746, when he was already nearly 30, and called to the bar in 1760. He was the youngest son of Henry Bayntun who was of a junior branch of the overly-complex Bayntun family of Wiltshire. The senior branch had been prominent landowners for centuries, described by the DNB as “the quintessential county family”, developing over the years a wide array of land-holdings and intertwining marriages and trailing vast numbers of lawsuits before dying out (in the nineteenth generation) shortly before our William was born.
William did manage to acquire and inherit his own modest collection of estates to support him, and he married well to Catherine Sandys, an heiress, in 1756 (she was some twenty years his junior and still underage, but her father had died in 1754). William and Catherine did not have any children and in his will, after providing for his wife, William left his estate to Windsor Sandys, a cousin of his wife’s. While William married, but did not have children, both his brothers had children, but did not marry.
William Bayntun was a Fellow of the Society of Antiquaries, and principally noted for his book collection, sold off after his death. Also a supporter of the arts, he subscribed to the first edition of Joshua Kirby’s Method of Perspective, and was present at the 1757 dinner at the Foundling Hospital.