When Valerius was elected in Uppsala in 1207, the Danish archbishop objected on the grounds that he had a clerical ancestry, and priests and other clergymen were not allowed to marry.
The Pope allowed a dispensation for Valerius on the grounds that there was no other suitable candidate and because Valierus was known as a learned man with good customs and virtues.
In 1209, when he was exiled in Denmark, Anders Sunesen, Archbishop of Lund, contacted Pope Innocent III in order to have a new bishop appointed for Finland.
According to medieval Chronicon rerum Sveogothicarum and Chronologia vetus, Valerius died later that year on April 7, 1219, and was buried in the church in Old Uppsala.
However, some historians regard that the chroniclers had the year of his death wrong, assuming that he died closer to the appointment of his predecessor Olov Basatömer in 1224.