Erlendr was a Nord warrior. He is a hero, and his ghost can be found inside the Hall of Valor in Sovngarde. He, along with Nikulas and Hunroor, was turned into a stone pillar at Brodir Grove by the wizard Grimkell while searching for Sovngarde. Ulfgar the Unending later avenged them by killing Grimkell. Erlendr and his companions eventually did find Sovngarde.
Gain entrance to the Hall of Valor in Sovngarde and prepare for a final assault against Alduin.