Though he never became king, the Black Prince wielded real power in England, Wales (though he never visited there), and above all Aquitaine, which he ruled with his wife, the controversial Joan of Kent, for most of the 1360s. He was the sovereign ruler of a large part of France, too. Edward was a brilliant soldier and commander, but politics were not his strongest suit and there is a strong argument for saying that he won the war but lost the peace because of his misgovernment of Aquitaine. Very good in fighting, but on the politics, he was either rather hopeless or simply uninterested. In terms of religion and estate management, there is no real evidence that "the Flower of English Chivalry" was even personally involved.
Some curiosities about his life tell that he owned a tent and full suit of armor with a spare helmet, he played dice, and he had pets, since there was a page with responsibility for his hares. The prince married for love. Joan of Kent was a highly unsuitable match in the eyes of his parents - at least compared to a foreign princess. She already had been married twice and had a reputation for loose living as well as for beauty. Yet, the Black Prince married her in Windsor.
If you'd like to read some great and funny comics about him, click here.