 The seat being vacant, the diocese had probably been under the direct command of the papal legate, William of Modena, whose last orders to Finnish priests were given in June 1248.Bero was eventually appointed as the new bishop in 1248/9, presumably soon after William's visit to Sweden for an important church meeting at Skänninge that ended on 1 March 1248.The so-called "Palmsköld booklet" from 1448 noted that it was Bero who gave the Finns' tax to the Swedish king.