Lordly Tailor is the fanciest and most expensive department store in all of Los Angeles. It has been in existence since 1818. It was the home of the Treasures of Kurain exhibit, featuring the Sacred Urn of Kurain Village. The department store consists of at least 12 floors, with the 12th one having a restaurant.
The name could come from Lord and Taylor, the oldest upscale, specialty-retail department store chain in the United States. "Lordly Tailor" itself is a combination of "lordly" and "tailor". This would make the department store literally "a tailor suitable for a lord".
In the French language version of the game, the name of this department store is "Galeries de France", which translates as "Gallery of France".