- See also: Arms of Mac Tir
Teyrn Loghain Mac Tir was not born a nobleman. It's said his family descended from freeholders in the western Bannorn, a region known as Oswin. His father, Gareth, would have had no surname of his own. He likely would have described himself as "of Oswin" or "ban Aehswin" (as the region would have been known in the Old Tongue).
The name "Mac Tir" means "son of the land." It was bestowed upon Loghain by King Maric after the Battle of River Dane. The Fereldan people considered the name highly appropriate: to them, Teyrn Loghain was a son of the entire nation, and he was famously said to have told a crowd that Ferelden would forever be "part of his blood."
After Loghain's betrayal of King Cailan at Ostagar in 9:30 Dragon, the general became as reviled as he had once been revered. His manse in Gwaren was looted and many of his personal possessions stolen—among them the armor he wore at the Battle of River Dane. That armor is said to have had special significance to the man. One peculiarity of the armor was a square of red silk pinned to one of the shoulderbelts. "For luck," Loghain once explained.
While this codex entry states that Loghain took the surname of Mac Tir after the Battle of River Dane, in Dragon Age: The Stolen Throne his father Gareth is revealed to have this surname as well, suggesting that it is a family name rather than a title.