Henry VII was born on January 28, 1457. Henry Tudor became the first monarch of that line, gaining the throne with a victory over Richard III in the Battle of Bosworth. This next to final battle in the Wars of the Roses decided things in favor of the Lancastrians.
The Wars of the Roses was covered in Scott's Anne of Geierstein, Henry himself is mentioned in passing:
...The treasured necklace of Margaret was then put to its destined use, and the produce applied to levy those bands which shortly after fought the celebrated Battle of Bosworth, in which the arms of Oxford and his son contributed so much to the success of Henry VII.