Is there any reason not to rename this page Henry I? Even if just for ease of locating as a real historical figure. He is referred to as "King Henry" (because Henry II had not been crowned yet) and we know from other sources that multiple Henrys did later exist.
In either case, the dab term is misspelled, so even if it isn't renamed to Henry I, it should at least be renamed to Henry (Abbey of Heretics).
Talk about it here.