The Catholic bishop Guðmundur Arason had defended the exclusive judicial powers of the Roman Catholic Church over its clergy against the secular powers of the goði chieftains. In 1208, Kolbeinn Tumason and Arnór Tumason of the Ásbirningar clan and Sigurður Ormsson of the Svínfellingar clan advanced on the see of Guðmundur Arason. They wanted the bishop to give up several men in his assembly with whom they claimed they had rightful business.
The Catholic bishop Guðmundur Arason had defended the exclusive judicial authority of the Roman Catholic Church over its clergy against the secular powers of the goði chieftains. In 1208, Kolbeinn Tumason and Arnór Tumason of the Ásbirningar clan and Sigurður Ormsson of the Svínfellingar clan advanced on the see of Guðmundur Arason. They wanted the bishop to relinquish several men in his assembly with whom they claimed they had legitimate business.