In 1160, Gualdim Pais, Grand Master of the Knights Templar in Portugal, laid the foundation stone for the Convento de Cristo of the Templar Monastery, which became the headquarters of the Knights Templar in Portugal and laid the foundation for the new city of Tumar. The feudal treaty of the Templars with the people was created in 1163. According to him, the Templars ruled from Tumar a vast region in central Portugal, and pledged to protect it from attacks and raids by the Moors.