The Early Komnenos-Palaiologos Era is a period in Diadochian history that lasted between 1439–1522. A period of over eighty years, during which time the foundation for the modern Diadochia were laid, much of the process had in fact been laid in the tenth century. It began with the election of Eric I of Diadochia, and continued to the reign his great-great grandson Eric II of Diadochia, which ended in 1522. The era was followed by a period commonly referred to as the Helenaic Era, named after Empress Helena I of Diadochia, the sole monarch of the era.