From Tolkien Gateway

House of Marach[edit source]

So I see that all my edits of changing the house name for the "Third House of the Edain" have been reverted back to "House of Marach". The term "House of Marach" has NEVER been used in canon and all the members of the house prior to Hador have been referred to belonging to the "Third House of the Edain". Again, I don't understand why admin status gives anyone the right to overrule canon information. Don't abuse your power pls. This is a community. Give a reason for your changes and MAYBE I won't change it back.--Kulid123 00:51, 8 June 2020 (UTC)

The term 'People/folk of Marach' is mainly applied to the characters you changed. It is a good thing to use cognates. Maybe you should remove the term 'House', but not simply removing the link to the article or changing it with other term that was not applied to them. Also, explain your edits, please. --LorenzoCB 07:42, 8 June 2020 (UTC)
There's a couple of issues I had. First of all, to the casual reader "Third House of the Edain" isn't helpful as even many seasoned Tolkien readers wouldn't be able to name you the order of the houses. Secondly, as LorenzoCB says, "People/Folk of Marach" is used, but I would even prefer "House of Hador" which Tolkien himself always used (he invented the name and then couldn't get rid of it), and a good precedent for this would be Moria, which people use even to apply to Khazad-dum before the unleashing of the Balrog. Thirdly, I think making such a unilateral change everywhere isn't OK.
Finally, on your point about admin status, Tolkien Gateway:Administrators makes it clear as an administrator I have the right to exercise my own judgement. --Mith (Talk/Contribs/Edits) 19:13, 8 June 2020 (UTC)