Athenæ Oxonienses. The History of Oxford Writers. Vol. 1, p. 554
Thomas Vivian
, a Cornish man born, or at least descended from those of his name living in Cornwall and Devon, was from his youth bred a Black Cannon, or Cannon Regular, and among those in Oxon, did he spend some time. Afterwards retiring into his own Country, he became Prior of the Black Cannons at Bodmin in Cornwal, and at length Suffragan Bishop to the Bishop of Exeter, under the title of Episc. Majorensis or Megarensis, that is, as I suppose, Megara. Joh. Leland (†)(†) In. [〈…〉] tells us, that the Priory at Bodmin stood at the east south-east part of the Parish Ch. yard there. There lay buried before the high Altar in an high Tomb of very darkish gray marble one Thom. Clar. 1510. Vivian Prior of Bodmin, and Suffragan Magarensis Episcopatus. He died not long since, &c. One Tho. Vivian of Exeter coll. proceeded Master of A. in an Act celebrated 10: March 7. Hen. 8. Dom. 1515. and was afterwards Rector of the said coll. for a time, but him I take not to be the same with the Bishop; yet Quaere.