Why did Henry V leave his wife?

Henry V did not leave his wife; rather, he was married to Catherine of Valois in 1420 as part of a political alliance with France. Their marriage aimed to solidify peace between England and France during the Hundred Years' War. Henry V's reign was marked by his military campaigns and efforts to assert English claims in France, but he remained with Catherine until his death in 1422. After his death, Catherine faced challenges as a widow and mother in a politically tumultuous environment.