During the 10th & 11th Centuries, Bishops in the Holy Roman Empire were nominated by the Emperor and their offices were non hereditary, so the territories they held were secure from any dynastic ambitions of rebellious lay princes such as the Counts of Tyrol.
During the 10th & 11th Centuries, bishops in the Holy Roman Empire were appointed by the Emperor. Being celibate, their offices were non hereditary, so any territories they held on behalf of the Empire were secure from the dynastic ambitions of rebellious lay princes such as the Counts of Tyrol.