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What happened when Edward IV died in April 1483?

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Richard III King Richard III, panel by an unknown artist.

Following the unexpected death of Edward IV on April 9, 1483, his 12-year-old son succeeded him as Edward V. Per the late king's will, Edward IV's brother, Richard, Duke of Gloucester, was designated lord protector of the realm.21

A power struggle immediately ensued between Richard and the Woodville family, who sought to control the young king and bypass the protectorate. Richard moved to secure his position by intercepting Edward V while he was traveling to London, arresting members of the Woodville party, and taking custody of the young king and his brother.21

Richard was subsequently recognized as lord protector and head of government. However, he soon moved to consolidate total power by executing Lord Hastings, a key supporter of the late king, and declaring Edward IV’s marriage invalid, which rendered his children illegitimate. On June 26, 1483, an assembly of lords and commons proclaimed Richard as King Richard III, effectively ending Edward V's brief reign.12