Sir William Tempest, of Studley

He was invested as a Knight before 1401

http://www.medievalgenealogy.org.uk/families/tempest/index.shtml #34 (Volume 1 page 53)

Richard Tempest (30) and his 2nd wife Isabella de Bourne (31) had 3 sons:

2. Sir William Tempest (34) of Studley and Hertford co. York, Hetton, co. Northumberland and Trefford co. Durham, etc. knt. born circa 1373, aged 54 and more in June 1429 (Prob: Oct: William Ingilby, Chanc: Inq: p.m., 7 Henry vj, No.75). Succeeded to the estates on the death of his brother John, circa 1398 (E.B.T.). ... Sir William Tempest (34) and his wife had two sons and two daughters ...