Complex sentence: After the death of John III of Brabant on 5th December 1355, his daughter Joanna and her husband, Wenceslaus, succeeded to the Brabantine throne, but this was disputed by the count of Flanders, Louis de Male.
Split into simpler sentences: After the death of John III of Brabant on 5 December 1355, his daughter Joanna and her husband, Wenceslaus, succeeded him as rulers of the duchy. Their succession was disputed by the count of Flanders, Louis de Male.