‘Apostle of Holstein’. Ordained priest in 1126, he was sent by the Bp. of Bremen as a missionary to the pagan Wagrians. From 1127 he worked in Holstein. After the unfortunate Crusade against the Wends in 1147 had destroyed his labours, he was consecrated Bp. of Oldenburg in 1149, but, declining to be invested by the Count of Saxony, was not recognized by him. Feast day, 12 Dec.