Grand Mason Marblesten

Grand Mason Marblesten is a level 44 quest giver located in the Commons in the dwarf city of Ironforge.

He starts the following quests:

See List of Ironforge NPCs.

Organization
The Royal Stonecutters Union may be the name of an organization.

Speculation
"Sten" means "stone" in Swedish, thus "Marblesten" might be a reference to "marble stone."