The city celebrated its thousandth anniversary in 1988, commemorating the first mention of the town's name in a letter dated 18 March 988 from the German Emperor Otto III which granted rights to Odense and neighbouring settlements. The first church in Odense appears to have been St Mary's, probably built in the late 12th century. The territory, previously part of the vast Archbishopric of Hamburg, was created a Catholic diocese in 988. The first recorded bishops of Odense were Odinkar Hvide and Reginbert, who was consecrated by Archbishop Æthelnoth of Canterbury, in 1022.