Jan van Renesse was a member of the Zeeland nobility. Together with Wolfert van Borselen he co-led a party favoring Flanders and against Holland, with considerable influence in Zeeland. With the support of Edward I of England, Jan van Renesse governed Zeeland on behalf of John I, Count of Holland, but van Borselen took up arms against him, and he was expelled after the failure of Edward I's invasion of Flanders. John was a descendant of Henry, Count of Looz.