Complex sentence: Towaras the end of 1158 he returned to England and was then sent north to attack the Scots, driving them out of the castle of Wark, he was probably present at the Battle of the Standard at Northallerton when the Scots wera completely defeated.
Split into simpler sentences: Towaras the end of 1158 he returned to England and was then sent north to attack the Scots, driving them out of the castle of Wark. He was probably present at the Battle of the Standard at Northallerton when the Scots were completely defeated.