I was reading the list of mythical British kings on wikipedia earlier and saw that there were three Constantines listed. This caused an idle thought to occur to me - what if some English monarch who's a fan of Mallory decides to name his son Constantine, so that mixed in with all the Henrys, Edwards and Georges there's a few Constantines in the history books? Obviously it's not going to change much but just struck me as a very un-British name to appear so frequently on the wiki list.