I feel like people are overcomplicating this. I think the most likely explanation is that the she belongs to the Lothar family bloodline that got diverged at some point where they stayed underground.
I doubt shes directly connected with THE Anduin Lothar considering how shes is a half-elf.
I’ll take Wild Speculation for $1000, Ken.
It’s either this or it could just be a name she took in homage to the noble house that she respects.
People are over thinking this.
These are WoW players. We overthink logging in.
Interestingly, according to the wiki Lothar’s very first description (back in the Warcraft 2 manual) noted that he was a descendant of the ancient kings of Arathi. Apparently he has some long-lost cousins.
Many of the Arathor do, including some of the new child models. Apparently it’s not that uncommon.
Thoradin’s surname is never mention he is just known as Thoradin
Faldir was the descendant of Thoradin that left to found the Kingdom of Stormwind that Anduin Lothar came from
https://wowpedia.fandom.com/wiki/Faldir
As for Faerin’s origin till Hallowfall is tested can’t say for sure. But there is a large gap in Arathian History between the Troll Wars and the Collapse of the Empire where a group of Arathians including a unknown descendant of Thoradin with the Lothar surname could of left.
Since this Group sailed of into the unknown and were never heard from again everyone back in Arathi would have thought they were dead and after time forgotten in Arathian history.
Human lore tidbits.
House of Arathor: The founders of the human kingdoms in the Warcraft universe. Notable figures include:
House of Azeroth: One of the successor kingdoms of Arathor. It’s not as extensively detailed in Warcraft lore, but it’s part of the broader human lineage.
House of Wrynn: As mentioned earlier, the House of Wrynn became prominent with King Varian Wrynn and his son, King Anduin Wrynn, leading Stormwind through various challenges and conflicts.
From the Warcraft movie,
Taria Wrynn
(maiden name lothar, Anduin lothars sister)
In the lore of the Warcraft universe, there are actually six main human kingdoms on the continent of Azeroth:
Stormwind (Wrynn)
Lordaeron (Menethil)
Kul Tiras (Proudmoore)
Gilneas (Greymane)
Stromgarde (Menethil / Trollbane)
Alterac (Perenolde)
Arathi / Arathor Line (Thoradin)
The Arathi empire being all seven human kingdoms.
If we have this faction calling themselves an empire from their perspective, ones who never saw or recognized the splintering.
Lothars being descended bloodline from the Arathi -} Faerin Lothar.
I feel like this post was just written to answer the broader question of why this character in a prominent role is in a family that until very recetnly, we’ve only seen as caucasian.
I think the OP was trying to find an in-lore reason for this when the real answer is that WoW has been on the same bandwagon as Hollywood since George Floyd where we’re magically re-racing and re-gendering characters for the sake of “inclusion.”
It is what it is. I dont care for this sloppiness either but I can see that this franchise has painted itself into a corner given that we didnt even have the ABILITY to truly create asian and african featured humans until what? like BFA? and we’ve still seen ONLY A FEW of them scattered throughout the world as NPCs.
I can see that blizz is making an effort and I guess that’s something that I should respect even if I dont like the way they’re doing it.
On the wiki, it says she’s a ‘distant’ relative of Anduin Lothar.
So while yea, it does seem like a DEI decision, its not like its completely unrealistic (we’ve seen Anduin Lothar is very much caucasian from the Warcraft II: ToD art)
Queen Taria was also half-black (at least, in the movie)- even though both Varian and Anduin are VERY white.
She’s half-elf? I could not tell in the trailer
THIS. And this is the topic that everyone is afraid to get banned for talking about. This is nothing more than DEI.
I knew old Marcus was sleeping around. Maybe this is Lothar’s version of the Steamy Romance Novels?
That’s a nice story OP, but as Tovi and some others have already explained, it makes zero sense.
The reason why she carries the name Lothar, despite the fact that she doesn’t even remotely resemble a Lothar and we’ve never heard of her in about 20 years of WoW lore, is the same reason for the things Disney has been doing for the past few years. It is what it is. 
Of course. She’s a DEI character.
Anyone who is being intellectually honest can see that.
She can be from any of the Lothar’s. There’s more than just the most famous ones and they were spread out through the world. from how she described her parents, they werent one of the famous ones. I think she’s from the Duke Lothar line since her parents wanted her to be in the books and focus on economics, and Duke Lothar was famous for his economics
Akston you’re right ,movie lore is not canon and never will be . I saw more references to the movie than I did the Chronicles. I will never understand where people get the idea that movie lore is canon.
She actually looks a lot like this toon here that I am posting on. Before they retconned her.
No one who screams “DEI” at every character who espouses minority traits is intellectually honest.