Earl of Richmond and away from any attempts of the French crown to acquire it and the related properties. From 1414 to 1435 the earldom of Richmond was held by John Plantagenet, Duke of Bedford. In 1453 it was conferred on Edmund Tudor, half-brother to King Henry VI. When Edmund's son Henry ascended the throne as Henry VII in 1485, the earldom of Richmond merged in the crown, and for the next forty years there was no further grant of the title. After Henry Tudor, Earl of Richmond, became King Henry VII of England, the title Duke of Richmond was created by the
Edmund Tudor, 1st Earl of Richmond Castle, they took the stronghold and captured Edmund Tudor. As Herbert's troops moved on to Aberystwyth, Edmund was left behind, imprisoned in Carmarthen Castle. On 3 November 1456, Edmund became infected with the bubonic plague and died. He was buried at the nearby Franciscan Church in Carmarthen. There were suspicions that Edmund may have been murdered, and so a trial was held several months later with several parties accused, but no one was found guilty. Edmund's remains were removed to the choir of St David's Cathedral, Pembrokeshire in 1539, due to the dissolution of the monasteries enacted by his grandson