Ibai Mendinueta (vocals/guitar/keyboards), Haritz Solupe (guitar), Egoitz Andonegi (bass).
Basque folk styled black metal, even employing the novel use of accordion. Ilbeltz shared the 2001 "Triarchy Of Vasconia" split album on War Is Imminent Productions with Adhur and Aiumeen Basoa. Bass player Egoitz Andonegi is also a member of Adhur. A variety of session players aided on including "Triarchy Of Vasconia" vocalist Beleak, Adhur singer Eate, drummer Barrene, violinist Leire Elizes and flautist Olatz Oiarbide.