The first mention of Karelians in ancient Russian chronicles dates to 1143 when the Novgorod chronicle mentions that Karelians raided neighbouring Tavastia (Häme). Ancient Russian chronicles referred to ancient Karelians as Koryela. Until the end of the 13th century, Karelians enjoyed a period of relative independence and self-government. However, as Karelians came in contact with Novgorod some of them started to take part in the Novgorodian internal and external politics. Russian chronicles mention a joint raid of Novgorod and Karelians on Tavastia in 1191. In the 13th century, the Karelian relationship with Novgorod underwent significant changes, from partnership and alliance to gradual dominance by the latter.