Geoffroy de Donjon
Geoffroy de Donjon or Geoffroy de Duisson was the 11th Grand Master of the Knights Hospitaller.
It is not known if he was from Picardie or Auvergne.
He was Henry II 's protégé and fought in the Battle of Ptolemais with Hermangard d'Asp. He achieved a 5 years truce with the Muslims.
