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.
Hor
Hor Awibre's reign length is partially lost to a lacuna of the Turin canon and is consequently unknown. According to the latest reading of the Turin canon by Ryholt, the surviving traces indicate the number of days as ""[... and] 7 days"". In the previous authoritative reading of the canon by Alan Gardiner, which dates to the 1950s, this was read as 
""[...] 7 months"". This led scholars such as Miroslav Verner and Darrell Baker to believe that Hor's reign was ephemeral, while Ryholt's reading leaves a longer reign possible and indeed Ryholt credits Hor with 2 years of reign. In any case, Hor most likely reigned only for a short time, in particular not long enough to prepare a pyramid, which was still the common burial place for kings of the early 13th dynasty. Regardless of the duration of his reign, Hor was seemingly succeeded by his two sons Sekhemrekhutawy Khabaw and Djedkheperew.