 This was the same event where both decided to join forces to divide between themselves the Kingdom of Galicia that had been assigned to their younger brother García II.With the complicity of Alfonso VI, Sancho II invaded Galicia in 1071, defeating their brother García II who was arrested in Santarém and imprisoned in Burgos until he was exiled to the Taifa of Seville, then under the rule of Al-Mu'tamid ibn Abbad.After eliminating their brother, Alfonso VI and Sancho II titled themselves kings of Galicia and signed a truce that was maintained for three years.