Thomas Willis (27 January 1621 – 11 November 1675) was an English doctor who played an important part in the history of anatomy, neurology and psychiatry. He was a founding member of the Royal Society.Willis was born on his parents' farm in Great Bedwyn, Wiltshire, where his father held the stewardship of the Manor. He was a kinsman of the Willys baronets of Fen Ditton, Cambridgeshire. He graduated M.A. from Christ Church, Oxford in 1642. In the Civil War years he was a royalist, dispossessed of the family farm at North Hinksey by Parliamentary forces. In the 1640s Willis was one of the royal physicians to Charles I of England. Less grandly, once qualified B. Med. in 1646, he began as an active physician by regularly attending the market at Abingdon. Wikipedia