Standard of Elendil
From Tolkien Gateway
The Standard of Elendil was a standard that Aragorn Elessar bore on the Paths of the Dead, made by Arwen. It had a black field, with seven stars wrought of gems, a white tree for Gondor, and a crown wrought of mithril and gold. These were the signs of the house of Elendil, which Aragorn unfurled at the Battle of the Pelennor Fields.
