Board Thread:General Discussion/@comment-29732690-20160823084424/@comment-25942629-20160827220438

Sorry for the delay! I am not active at this time, but I got you. I shall explain the semi-long chronicles of Gabel's naming confusion! ;)

First, Gabel's name was originally translated by fan translators as "Gable Fatima" and "Gabel Parte," but the official translation is "Gabel Parthe," leading to all sorts of scrambling to make corrections on the Wiki. Likewise, "Urd Geales" was fan-translated as "Waldo Gilles," leading to a few "Where's Waldo?" jokes.

"Gabel Parthe" appears on page 13 of the February 9th issue of the English WSJ in Seraph of the End: Vampire Reign chapter 42, "Sanguinem's End." This is the official English spelling in the magazine and should be the most accurate as well. The official-official-no-take-backs spelling should appear in manga volume 11, which comes out in January. "Gabel Parthe" is the correct spelling you should go with, and that would only change if it is different in the volume release.

It appears that the other websites you mentioned are using the inaccurate fan translations and didn't update them with the official ones.