Complex sentence: His whereabouts during the remaining years of King Stephen's reign are unknown, but in January 1156 Henry II of England confirmed Geoffrey's title as earl of Essex and his lands, but not lands or offices granted to his father during the civil war.
Split into simpler sentences: His whereabouts during the remaining years of King Stephen's reign are unknown. In January 1156 Henry II of England confirmed Geoffrey's title as earl of Essex and his lands, but not lands or offices granted to his father during the civil war.