Abbot Oliba
Oliba spent his time and energy defending churches' property and rights against attacks by his manor. In 1011, he went to the Vatican to meet the leader of the Roman Catholic Church, Pope Sergius IV, and he won several bulls, which are papal rulings, for his monasteries. These papal bulls had significant power: the Pope, whom medieval Catholics considered God's representative on earth, said that the monasteries and lands owned were under the protection of St. Peter and the attack on the abbey was an aggression against the authority of the Pope.