The Curonians is one of the extinct Baltic tribes that later formed the Latvian nation. They lived in Courland, actually the Latvian province of Kurzeme. In ancient and medieval times, the Curonians were named of kursi, and were known as fierce warriors, involved in several wars and alliances with Swedish, Danish and Icelandic Vikings. Chapter 46 of Egils Saga describes one Viking expedition by the Vikings Thorolf and Egill Skallagrímsson in Courland. The Curonians was one of the last peoples to accept Christianity, although pagan customs were continued after the 19th century. Some of the most important writing sources about the Curonians are the Henrici Chronicon Livoniae, the Livländische Reimschronike , well as the Egils Saga and the Saxo Grammaticus Gesta Danorum.