"Sylvanas Windrunner"

Arthas Terenas Menethil, King of Lordaeron and High King of the Grand Alliance, is the son of King Terenas Menethil II and his wife, Lianne. He was trained as a paladin by Uther the Lightbringer and became a member of the Knights of the Silver Hand. He had a brief romantic relationship with childhood friend Jaina Proudmoore, but broke it off due to conflicting duties. Arthas was committed to the protection of his people and the Alliance as a whole; tracking down the source of the undead plague that affected Lordaeron, saving Quel'Thalas from the Scourge and beating back the Burning Legion and saving the Mag'har Orcs.

While on his expedition in Northrend, Arthas began a romantic relationship with Ranger-General of Silvermoon Sylvanas Windrunner. The couple married after the Third War and had a daughter; Airalia Lnne Menethil, Princess of Lordaeron. Arthas restructured the Alliance of Lordaeron into the Grand Alliance and was responsible for the creation of the Azeroth Pact; the consortium between the Alliance and the Horde during the Burning Legion's Third Invasion of Azeroth.