 His Glasgow connections and political profile were already well @-@ established enough that in 1174 Jocelin succeeded Enguerrand as Glasgow 's bishop . As Bishop of Glasgow , he was a royal official . In this capacity he travelled abroad on several occasions , and performed the marriage ceremony between King William the Lion and Ermengarde de Beaumont , later baptising their son , the future King Alexander II . Among other things , he has been credited by modern historians as " the founder of the burgh of Glasgow and initiator of the Glasgow fair " , as well as being one of the greatest literary patrons in medieval Scotland , commissioning the Life of St Waltheof , the Life of St Kentigern and the Chronicle of Melrose . 
