In 905, Queen Nessa Elensar died, leaving the Ithendelt kingdom without a heir. House Glorfindel and House Ithengee vied for who would control the leaderless nation, starting the Ithendelt Schism (905 - 912).
The Ithendelt Schism, a seven year civil war, ended with the exile of House Glorfindel and her allies. They went east across the Core Sea, founding Erchinor on 27 Brightstar 913. Along with other families, they did away with the single family rule of Ithendelt, establishing a council of family heads, the Gilraen Oligarchy.