Overview
Valdemar Knudsen (also Waldemar, born in 1158; died 18 July 1236 in Cîteaux) was a Danish clergyman and statesman. Valdemar was Bishop of Schleswig from 1188 to 1208, officiated as Steward of the Duchy of Schleswig between 1184 and 1187, and served as Prince-Archbishop of Bremen from 1192 to 1194 and again between 1206 and 1217. He held the latter office on the grounds of the archdiocesan capitular election as archbishop elect and of the royal investiture with the princely regalia, but lacked the papal confirmation.
His mother, likely the wife of another man, gave birth to him as the posthumous illegitimate son of King Canute V of Denmark in early 1158. His father Canute V had been slain on 9 August 1157 by the co-regent Sweyn III. So Valdemar, like his half-brother, Saint Niels of Århus, claimed succession to the Danish throne.
Valdemar grew up at the court of his cousin, King Valdemar I of Denmark, the Great. Still in his youth his great ambitions and abilities crystallised, so that he was determined for the holy orders. Valdemar studied in Paris and Abbot Stephanus of the Abbey of Sainte-Geneviève noted that the Danish prince was mature and dignified like a bishop despite his youth, humble despite his noble descent, and spoke like a Frenchman despite his Danish tongue. After his studies his cousin promoted Valdemar's provision for the See in Sleswick in 1179, although still too young to be consecrated bishop as successor of the late Frederick I.
As bishop of Schleswig and steward of the Duchy of Schleswig
In memory of his late brother Niels he founded memorial endowments at the Abbeys of Ås (by 1192) and Vä (1182). From 1184 on Valdemar officiated as steward of the Duchy of Schleswig for Valdemar the Great's minor son Duke Valdemar (later King Valdemar II of Denmark). In 1187 King Canute VI Valdemarsen endowed the diocese of Schleswig with far reaching privileges. At Christmas 1187 Duke Valdemar took over the Duchy of Schleswig and soon later Valdemar Knudsen was consecrated bishop probably in the Cathedral of St. Peter's. After consecration in 1188 Bishop Valdemar levied the tithe, supported by his metropolitan Absalon, since before the tithes had hardly ever been levied in Danish dioceses.
From Wikipedia (CC BY-SA 4.0).