when did he become bishop?
22 July 1123
Alexander of Lincoln
Alexander was nominated to the see of Lincoln in April 1123 and was consecrated bishop on 22 July 1123, at a ceremony held in Canterbury.
who is alexander of lincoln? medieval English Bishop of Lincoln
wiki:23025100
Alexander of Lincoln [SEP] Bishop
Alexander was nominated to the see of Lincoln in April 1123 and was consecrated bishop on 22 July 1123, at a ceremony held in Canterbury. He owed his appointment to his uncle's influence with King Henry I; the Peterborough version of the "Anglo-Saxon Chronicle" noted that Alexander's appointment to the episcopate was done entirely for the love of Roger. During his time as bishop Alexander secured the submission of St Albans Abbey to his diocese and founded a number of monasteries, including Haverholme Priory (a Gilbertine house), Dorchester on Thames (an Arrouaisian Order house), Louth Park, and Thame; Louth was one of the first Cistercian houses founded in England, and Dorchester was the refoundation of a former collegiate church.