I want to know the answer to the following question:
John acquired key land between Poitou and where?
All the background I'm provided with is that "In order to remarry, John first needed to abandon Isabel, Countess of Gloucester, his first wife; John accomplished this by arguing that he had failed to get the necessary papal permission to marry Isabel in the first place – as a cousin, John could not have legally wed her without this.". Is that enough to answer the question?