Add punctuation to the following sentence: He set off for Antwerp on 15 July 1520 with his wife and their maid to visit the Emperor Charles V Passing through Aachen Drer sketched the cathedral at Aachen
He set off for Antwerp on 15 July 1520 with his wife and their maid to visit the Emperor Charles V. Passing through Aachen, Durer sketched the cathedral at Aachen .