During the latter half of the 15th century, civil war existed in England as the House of York and House of Lancaster fought each other for the English throne. In 1471, the Yorkists defeated their rivals in the battles of Barnet and Tewkesbury. The Lancastrian king, Henry VI of England and his only son, Edward of Westminster, died in the aftermath of the Battle of Tewkesbury. Their deaths left the House of Lancaster with no direct claimants to the throne. Subsequently, the Yorkist king, Edward IV of England, was in complete control of England. He attainted those who refused to submit to his rule, such as Jasper Tudor and his nephew Henry Tudor (later King Henry VII of England), naming them as traitors and confiscating their lands.