Pope Alexander III in his bull Omme datum optimum, define the new structure of the Order. The choice of Maestre, involved the convocation of the Chapter with 12 members elected by a primary election, in which a commander and a brother, chose two other members of the chapter and these at the same time the following members.
When he was elected Master delivered symbols: Cane and whip. Orders del Maestre, were considered as an expression of God's will. The Master could not dispose of the assets of the Order and was allowed to give only: a horse, a glass of gold or silver, a fur cloak or armor. It was forbidden gift spears and swords.
In campaign, the Maestre available a round tent over which flew the: Black and white flag with the Red Cross of the Order of the Temple, which they called baucent