Bishop Peter Courtenay was born to Philip Courtenay and Elizabeth Hungerford.

On 16 Dec 1463 [his father] Philip Courtenay (age 59) died.

On 14 Dec 1476 [his mother] Elizabeth Hungerford died.

In 1478 Bishop Peter Courtenay was appointed Bishop of Exeter.

In 1487 Bishop Peter Courtenay was appointed Bishop of Winchester.

On 22 Sep 1492 Bishop Peter Courtenay died.

Polydore Vergil. 12. Amidst these developments, this conspiracy of nobles was revealed to Richard, who was disturbed by a double evil, that he did not have a standing army, nor, should he wage a sudden war, did he have a sufficiently clear idea where he should confront Henry, or whether he should stay or go, and so he decided to dissimulate the affair a little while until he had assembled an army and until all his adversaries’ counsels had been sounded, understood, and brought to light by popular rumors and the diligence of his spies, or until by some trick he might take some member of the conspiracy, since there are no more secret traps than those which lie concealed in the concealment of understanding, or in some show of kindness. And since he was aware that the Duke of Buckingham was the conspiracy’s head, he thought this was the first that needed to be cut off, by stealth or by violence. Therefore in a very kindly letter he summoned the duke to himself, and instructed the messenger who bore it to tell the duke to make many promises on his behalf and in some good way to urge him to return to the palace. Pleading indigestion, the duke replied to the messenger that he could not come at present. Richard refused to accept his excuse, and summoned him once more, this time threateningly. Then the duke frankly refused to go to his enemy, and at the same time prepared for war, persuading the partners in his counsel that they should make some commotion elsewhere as soon as they could. So at almost the same moment Marquis of Dorset came out of asylum in Yorkshire, rescued from all his danger by Thomas Rowell, while in Devonshire Edward Courtney and his brother Bishop Peter of Exeter incited a peasant uprising, Richard Gilford and some nobles did the same in Kent. Meanwhile Richard, having collected a huge number of armed men, lest he dissipate his strength by pursuing individual conspirators, decided to ignore the rest and direct his arms against the head, which is to say, the duke. Leaving London, he marched in the direction of Salisbury, so he might turn aside and go against the duke if he ever learned where he was encamped. And now he had gone scarce two days from the city when the duke came against him. He was leading a great force of Welshmen, but they were reluctant and not inclined to fight on his behalf, since this hard man had recruited more by his command than by money, and this was the reason why they deserted him. For while on the march he was suddenly forsaken by the larger part of his soldiers, and obliged to flee. And in the course of his flight, terrified by this sudden alteration in his fortunes, and undecided what counsel to take, he hid himself in the home of a certain member of his household named Humphrey Bannister. He had known the man from boyhood and so was sure he was quite loyal, and entrusted himself to his protection, planning on staying with him until he had decided whether to rebuild his army or to go to Britanny and join Henry. When his allies who had joined in this war learned that the duke had been deserted by his men, had fled, and was nowhere to be found, then they were suddenly overcome by fear as each man took to his heels, despairing of his safety, seeking either asylum or deserted places, or trying to escape overseas. A goodly portion of these latter arrived in Britanny a few days later, safe and sound. These were Peter Courtney, Bishop of Exeter, Marquis Thomas of Dorset with his very young son, John Bourchier, John Wells, Edward Woodville, a stout fighting man and the brother of Queen Elizabeth, John Cheyney and his two brothers, William Barkley, William Brandon and his brother Thomas, nearly all of whom were knights. Likewise John Halwell, Edward Peningham, chief captain of the army, and Christopher Urswick. At the same time John Morton, Bishop of Ely, and a number of other nobles made their escape to Flanders.