Career
He alludes to this action in a cobla of 1212, a response to the criticism of a certain Mahieu or Matheus (not Mathieu de Caerci) for "selling out" to the French. Bertran surrendered promptly to the Crusaders under Simon de Montfort in May 1218 and did homage to Simon for his lands. Bertran wrote a comic tenso, that is poetical debate, with Peire Raimon de Tolosa, now known by the incipit Totz tos afars es nienz.
lieutenant was dated to before 1211 by Joseph Anglade on the basis that Bertran was probably not at odds with his fellow southern barons yet if he was, as Anglade, suspects, playing host and patron to Peire Raimon, who had just recently left the court of Toulouse, the chief enemy of the French crown.
