Editing Hook and Cod wars (section)

=== William rebels ===
The attempt to make Beaumont lieutenant might have been reason for William to fear a complete loss of his pretensions. Gerard van Herlaer advised him to contact the Cod party again. In the night of 1-2 February 1351 Gerard van Herlaar and Gerard van Merxem succeeded in freeing William of Bavaria from Burbant Castle in [[Ath]].{{sfn|Van Doornmalen|2017|p=95}} William then formally allied himself with the Cod party, which acknowledged him as their count. He also allied with the Bishop of Utrecht.{{sfn|Blok|1923|p=324}}

Margaret reacted by making her son Louis her formal heir, and by seeking aid from England.{{sfn|Rymer|1740|p=59}} In early 1351 Margaret, her son Duke Louis, and the Lords of Borselen and went to Dordrecht to attempt to subdue William again. While Dordrecht, Middelburg and Zierikzee allied with Margaret, William was acknowledged by [[Kennemerland]] and [[West Friesland (region)|West-Friesland]]. Diplomatic action by Beaumont and the Queen of England failed. In April 1351 Margaret moved to Calais to negotiate with the English. William then seized Dordrecht. [[Wolfert III van Borselen]] joined William, causing Middelburg to flip to William's side.{{sfn|Blok|1923|p=325}}