Hello,
Currently the Ascendant title is the highest PvP-Title available ingame and it shares the same title with the 25 HoM-Points-Title. Both are named Ascendant and can be found under the “Hall of Monuments”-Achievement list and the other one on the “PvP Conqueror”-Achievement list.
I assume it is a bug, since the highest PvP Title shouldn’t be handed out for lousy 25 HoM Points.
-Shara