Upvote:2
A recent biographer of St. Thomas, Jean-Pierre Torrell, says in Saint Thomas Aquinas. Volume I, The Person and His Work (Washington, D.C.: Catholic University of America Press, 2005), p. 294:
The rumor must have circulated rather widely; the chronicler Giovanni Villani and Dante Alighieri himself echo it. It seems that all the historians are in agreement today in discarding this rumor as without serious foundation.