"Edward IV (28 April 1442 – 9 April 1483) was King of England from 4 March 1461 to 3 October 1470, and again from 11 April 1471 until his death.
His father, Richard of York, leader of the Yorkist faction, was a lineal descendant of Edward III and until 1453, heir presumptive to Henry VI, from the ruling Lancastrians. Less than a year old when he came to the throne in September 1422, Henry´s minority was marked by political infighting within the Regency council. After 1437, he ruled in his own right but his weak and indecisive personality did little to mitigate factional conflict." - (en.wikipedia.org 31.01.2020)