John, King of England of the United Kingdom. John, the youngest of five sons of King Henry II of England and Duchess Eleanor of Aquitaine, was at first not expected to inherit significant lands. Following the failed rebellion of his elder brothers between 1173 and 1174, however, John became Henry's favourite child. He was appointed the Lord of Ireland in 1177 and given lands in England and on the continent. John's elder brothers William, Henry and Geoffrey died young; by the time Richard I became king in 1189, John was a potential heir to the throne. John unsuccessfully attempted a rebellion against Richard's royal
History of the English line of succession eldest living son: Richard I. Richard had no legitimate children. On the day of his death, 6 April 1199, if the line of succession to the English throne had followed primogeniture, he would have been succeeded by his nephew Arthur I, Duke of Brittany (b. 1187), son of Richard I's brother Geoffrey, Duke of Brittany. However, since Arthur had sided with Philip II of France, Richard's enemy, Richard named his younger brother John as his heir, and he became king. John died, on 19 October 1216, in the midst of conflict against his barons; most of them had already recognized