This man gained the regions of Champagne and Brie after his marriage to Joan I of Navarre.
This man gained the throne after the deaths of his older brother Louis and younger brother Robert, which may have been caused by his stepmother, Marie of Brabant. This king's chamberlain was accused of bribery by this king's half-brother for opposing a war in Flanders; that man, Enguerrand de Marigny, was executed after this king's death. This man gained the regions of Champagne and Brie after his marriage to Joan I of Navarre. His negotiations with Edward Crouchback caused him to gain Gascony, but also led to hostilities that caused the signing of the Auld Alliance. This man's daughter uncovered the infidelity of her sisters-in-law in the (*) Tour de Nesle Affair. This man's three sons Louis X, Philip V, and Charles IV all died shortly after one another, allowing this man's half brother to become the founder of the House of Valois. For 10 points, name this Capetian king of France who presided over the beginning of the Babylonian Captivity.
This man gained the throne after the deaths of his older brother Louis and younger brother Robert, which may have been caused by his stepmother, Marie of Brabant.
Philip IV of France (or Philip the Fair, or Philip Le Bel; prompt on "The Iron 