Born in Woodstock Palace, Oxfordshire County in 1330. In 1333 he became Earl of Chester and created as first Duke of Cornwall on 13 March 1337. In 1343, with thirteen years of age was proclaimed Prince of Wales, in his as heir to the throne of his father. He was also appointed as a member of the Order of the Garter, founded by his father. It was a brilliant military leader, showing his bravery at sixteen years old at the Battle of Crecy. He also participated in a risky and decided against the French during the Hundred Years' War. After signing a pact with King Charles II of Navarre, he fought against the armies of Juan II of France.
In 1356, participating in the operations of the war against France, Eduardo commanded an army of more than seven thousand soldiers. He led his forces in the struggle, achieved a great victory over the French heavy cavalry at the Battle of Poitiers. In that decisive action seizes King John II of France, leading hostage England. With the signing of the Treaty of Brétigny (1360), King of France regains his freedom yielding valuable land to the British, and this time his father named him Duke and lieutenant of Guyenne and Aquitaine. Subsequently transferred his residence to Castile, politically it ties with King Pedro I and together they fight against Enrique de Trastámara ally Carlos V of France. Inthat war his forces defeat at the Battle of Nájera in 1367. P>
King Peter I of Castile (brother of Prince Henry of Castile) entered constant disagreements and a series of actions against the Black Prince because of not paying as agreed by lend armed assistance, so he decides to leave Castilla , leaving only the thankless Pedro I in the fighting.
The October 10, 1361, in the town of Windsor, he married Countess Joan of Kent, granddaughter of King Edward I. This marriage was for real love, having done without the consent of King Edward III -for the scandal caused by bigamy of the countess of Kent, taking the couple to stay in France until 1371, when they return to England, and with the blessing of the sovereign.