History of England
With Henry VII's accession to the throne in 1485, the Wars of the Roses came to an end, and Tudors would continue to rule England for 118 years. Traditionally, the Battle of Bosworth Field is considered to mark the end of the Middle Ages in England, although Henry did not introduce any new concept of monarchy, and for most of his reign his hold on power was tenuous. He claimed the throne by conquest and God's judgement in battle. Parliament quickly recognized him as king, but the Yorkists were far from defeated. Nonetheless, he married Edward IV's eldest daughter Elizabeth in January 1486, thereby uniting the houses of York and Lancaster.
Culture of Wales
The Tudors of Penmynydd grew in power and influence during the 13th to 15th centuries, first owning land in North Wales, but losing it after Maredudd ap Tudur backed the 1400 uprising of Owain Glyndŵr. Maredudd's son, Owain ap Maredudd ap Tudur, anglicised his name to become Owen Tudor, and was the grandfather of Henry Tudor. Henry took the throne of England following the Wars of the Roses when his forces defeated those of Richard III at the Battle of Bosworth Field. The House of Tudor continued to reign through several successive monarchs until 1603, when James I (James VI of Scotland) took the throne for the House of Stuart; his great grandmother was Margaret Tudor.