 After the reconciliation between Henry II and Becket, he was employed by the king, but he left England for France after Becket's murder in 1170.After Henry's death in 1189, he returned to England, where he became a canon in Lincoln.Apart from several theological works, Niger wrote two chronicles in Latin, one on the German emperors and the kings of France and England, which runs up to 1206, and the other one treating history from the world's origin up to the year 1199.