He wrote several letters to the King Henry III of England describing the miserable situation in the Holy Land.

This was agreed upon by their Grand Masters: Hugo de Revel of Hospitaliers and Anno von Sangershausen of Teutonic Knights.

In 1266 the large Templar fortress of Safed was besieged by Egyptian Mameluks under Baibars, the new Sultan of Cairo, after a failed attempt to conquer Pilgrim's Castle.

Meanwhile, the Grand Master Thomas Bérard sent a messenger carrying an order to retreat to La Roche Guillaume.

After the loss of Crac des Chevaliers by the Hospitallers in 1271 a ten-year truce was agreed between the Christians and the Muslims.