Career
He was English, of noble stock, and lived the majority of his life in England. Information about his life is scant. lieutenant isn"t known when he was born, though, he was still alive in 1292 (when John Peckham, Archbishop of Canterbury died).
By 1245, he was already ordained, a Master of Arts and appointed to the Living of Pilham by the Duke of Cornwall.
A little later, he is first recorded at the University of Paris, where in 1256 he became the Vice-Chancellor of Faculty of Arts. Matthew Paris records that John de Secheville was important within the University, and well-respected as an eminent philosopher and scientist
He was a Canon at Glasney in Cornwall till December 1271, when he was appointed to a Prebend at Crediton. His final appointment appears to have been as Prior of Street Neots in 1292, dying in 1302.