Conquest of Wales by Edward I of England lands as the lordship of Powys and became known as Owen de la Pole (or "Poole"). Lands retained under direct royal control were organised under the Statute of Rhuddlan of 1284, which declared that they were "annexed and united" to the English crown, although they did not become part of the Kingdom of England. They were the King's personal fief and in 1301, they were bestowed on Edward's son, Edward of Caernarfon (the future Edward II), with the title "Prince of Wales" and thereafter the lands and title became the customary endowment of the heir to the throne. The Statute
Prince of Wales used in the insignia; gold rods were formally used in the investitures of dukes, but survive now in the investitures of Princes of Wales only. Also part of the insignia are a ring, a sword and a robe. Since 1301 the title Earl of Chester has generally been granted to heirs apparent to the English throne, and from the late 14th century it has been given only in conjunction with that of Prince of Wales. Both titles must be created for each individual and are not automatically acquired. The Earldom of Chester was one of the most powerful earldoms in