The nomadic Avars, who arrived from the Eurasian steppes, invaded the Carpathian Basin and subjugated the local inhabitants in the second half of the 6th century. Thereafter, Slavic groups inhabiting areas around the core regions of the Avar Khaganate paid tribute to the Avars. The khaganate experienced a series of internal conflicts in the 630s. According to the "Chronicle of Fredegar", the "Slavs who are known as Wends" rebelled against the Avars and elected a Frankish trader named Samo as their king in the early 7th century. Samo's realm, which emerged in the northern or northwestern regions of the Carpathian Basin, existed for more than three decades. It disintegrated soon after its founder's death and Avar control of the region was restored.