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.
History of the foreign relations of the United Kingdom
King Henry VII (reigned 1485-1509) founded the Tudor dynasty that lasted to 1603, and concentrated on establishing peace in England, especially against the threatened rebellions by the newly defeated House of York. Foreign affairs apart from Scotland were not a high priority. Scotland was an independent country, and peace was agreed to in 1497. Much of his diplomacy involved treaties for marriages with ruling houses in Europe. He married his eldest daughter Margaret Tudor to King James IV of Scotland in 1503. The match did not guarantee peace in the short run but did so in the long run: in 1603 James VI and I, the grandson of the marriage, united the two kingdoms under his rule. Henry tried to marry his daughter Mary to the man who later became Charles V, Holy Roman Emperor, but that fell through. Henry VIII finally married her to King Louis XII of France as part of a peace treaty in 1514; Louis died after three months and Henry demanded and got most of her dowry back. The other main diplomatic success of Henry VII was an alliance with Spain, sealed by the marriage in 1501 of his heir Arthur, Prince of Wales, to Catherine of Aragon, Spain's infanta (eldest daughter of the Spanish king). When his Queen died in 1503, Henry VII searched the European marriage market for a diplomatic marriage with a large dowry for himself, but was unable to find a match.