Hjalmer was the second known ruler of Skyrim. He was the eldest living son of Harald, the first known ruler of Skyrim. Hjalmer became king of Skyrim in 1E 221, after his father Harald died, when the first ever Moot was convened. He didn't reign long, as he died the following year in 1E 222, of unknown reasons. His younger brother, Vrage, became the next High King.