Who was the heir apparent to the English throne who never became king, allowing his younger brother to succeed to the throne in 1307?
Edward II of England Edward II (25 April 1284 – 21 September 1327), also called Edward of Caernarfon, was King of England from 1307 until he was deposed in January 1327. The fourth son of Edward I, Edward became the heir to the throne following the death of his older brother Alphonso. Beginning in 1300, Edward accompanied his father on campaigns to pacify Scotland, and in 1306 he was knighted in a grand ceremony at Westminster Abbey. Edward succeeded to the throne in 1307, following his father's death. In 1308, he married Isabella of France, the daughter of the powerful King Philip IV, as part of a long-running effort to resolve the tensions between the English and French crowns.
Duke of Hereford Duke of Hereford was a title in the Peerage of England. It was created in 1397 for Richard II's cousin, Henry Bolingbroke, due to his support for the King in his struggle against their uncle Thomas of Woodstock, 1st Duke of Gloucester. It merged in the crown on Henry's usurpation two years later, and has never since been recreated.