Sioni is a Georgian village situated at an elevation of 1,860 meters in the Kazbegi Municipality near the town of Stepantsminda, on the right bank of the Tergi River (a tributary of the Terek). Sioni is one of the oldest settlements in the region. One of its most important landmarks is a three-nave basilica. Built in the 9th-10th centuries, it is adorned with inscriptions in Asomtavruli, the oldest Georgian script. Sioni was the site of an uprising against Russian rule in 1804, which was suppressed only after fierce battles.