 Some of the crusaders unsuccessfully besieged Tudela in the winter of 1087, before withdrawing.That same year, the king crushed a revolt in Galicia aimed at releasing his brother García II.In 1088 Yusuf ibn Tashfin crossed the Strait of Gibraltar for the second time, but was defeated at the siege of Aledo and suffered the desertion of many of the rulers of the taifas.