Page "Edward IV of England" Paragraph 19

Ultimately, despite his military and administrative genius, Edward's dynasty survived him by little more than two years, but Edward was one of the few male members of his dynasty to die of natural causes.

Both Edward's father and brother were killed at the Battle of Wakefield, while his grandfather and another brother were executed for treason.

Edward's two sons were imprisoned and disappeared ( presumed killed ) within a year of Edward's death.

The king's youngest brother, Richard, ( later Richard III ) was famously killed in battle against Henry Tudor at Bosworth Field.