The Crown of the Skeleton King is a quest item required for the required player must secure in order to complete [[The Skeleton King]] quest. See that page for more details.

Dropping the Crown on them caused King Leoric to reanimate, triggering the final boss battle that concluded the ==Blizzcon 2008 demo. Demo==

In the 2008 Blizzcon demo, the crown was obtained on the second level of the dungeon from the leader of a group of [[Dark Cultist]]s. After securing the crown, players had to venture down to the third level of the dungeon and fight their way through to [[Leoric]]'s throneroom, where the ancient King's moldering bones were perched on a throne.  Delivering the Crown caused King Leoric to reanimate, triggering the final boss battle that concluded the Blizzcon 2008 demo.  The crown has a name that is green in color, but this as do all [[Quest Item]]s in Diablo III. This is not a change from Diablo II, where [[Set ItemItems]]were named in green.