the coronation was an occasion to say in a very public way that the right to make a person king was in the hand of the church, thus making the church itself a very powerful entity who could in fact play a crucial role in the balance power of the period, as it was in many occasion.
Image result for Pope Leo 111 crowned Charlemagne as holy emperor. What did this indicate about the Catholic Church?
Pope Leo III (Latin: Leo; fl. 12 June 816) was pope from 26 December 795 to his death in 816. Protected by Charlemagne from his enemies in Rome, he subsequently strengthened Charlemagne's position by crowning him Holy Roman Emperor and "Augustus of the Romans".
Burgess related to a person that was an elected official or appointed to as an official of a municipality or a representative of a certain place. I would choose governor.