 Walter de Segrave (or de Sexgrave) was at Merton College, Oxford from 1321 until at least 1338, and had obtained his Magister Artium by 1336. From 1340–42 he was Chancellor to Richard Aungerville, that is, Richard de Bury, Bishop of Durham, who famously gathered around him some of the very best minds in the kingdom, including Walter Burley, Thomas Bradwardine and Richard Kilvington. Segrave subsequently became Dean of Chichester, but was dead by 1349. His Insolubles is his only known work, which appears to have been composed at Oxford in the late 1320s or early 1330s, which is consistent with the fact that it is clearly a response to Bradwardine’s own Insolubles. (See Spade 1975 item LXVIII) 