Branch of the Lithuanian , Latvian , and Old Prussian.
They were or are spoken along the eastern and southeastern shore and hinterlands of the Baltic Sea. Medieval chronicles report four other Baltic-speaking peoples in the region, though by the 16th century these peoples had been completely assimilated. Baltic has certain striking features in common with {{link=Slavic languages">Slavic languages , though the deep divisions within Baltic itself, among other factors, make the hypothesis of a common Balto-Slavic protolanguage difficult to defend.