However, during the war over the succession to the English throne known as the Anarchy, the area of the diocese of Llandaff fell under the control of Robert, Earl of Gloucester, who was one of the most important allies of King Stephen's opponent Empress Matilda.
[4][5] According to the chronicler Gerald of Wales, Uhtred was poorly educated and shamed the office of bishop, although this information is not impartial due to the rivalry between the Diocese of St David's (an appointment to which Gerald of Wales coveted all his life) and the Diocese of Llandaff at the time.
He improved the administration of his diocese and appointed a Welsh clergyman as dean of Gwent to strengthen his authority as bishop.
Uhtred strengthened his position by marrying his daughter Angharad to Iorwerth, the brother of King Morgan ab Owain of Caerleon.
After Uhtred's death, his son Robert tried in vain to enforce his inheritance claim to the diocese of Llandaff against the newly appointed bishop Nicholas ap Gwrgan.