The wedding had the first papal dispensation to allow a monarch to keep the throne as king with a queen consort, rather than king and queen.
Arthur (1486-1502) was the oldest son to survive infancy, but he died in his teens leaving Henry (b.1491) to ascend to the throne; even with an older sister Margaret (b.1489).
None of which is relevant to a very recent, and annual, early-November celebration....

