Eastwards from Persantė (Pasleka
) and Alna's (Lyna
) middle formed a wide uninhabited territory. This is explained by appearance of the " fear" zone between Balts and newly arrived Goths in the mid Vistula. This also shows relationships between Balts and Goths weren't friendly.
Clear cultural continuity. However, a little bit changes directions if of cultural connections. Appears the second trading direction (apart from amber way to Roman provinces), the way to the Black sea previously discovered by Goths. The mid Vistula became the crossroad of these trading ways.
450/475 - ~550 AD
Researchers noticed that Prussian burials are spreading in south-western direction and reach lower Vistula. This is usually explained by Old Prussian expansion to previously deserted Gothic lands. Semba becomes periphery of Old Prussia. J. Okulisz has counted that 43 burials are deserted in Sembia. Similar situation in Western Lithuania, lower Nemunas. Emigration to the coast of Vistula Lagoon could explain situation in Semba. But it gets very unclear if we compare burials of Sembian peninsula and Vistula Lagoon. The richness of Vistula Lagoon (Notanga and Warmia) burials is obvious without any bigger calculations, many burials with atypical shrouds to Balts are found. Sembian burials have only few rich burials.
Large archeological layer of Wielbark culture by IV th c. got almost empty, only few burials of IV th c. are known.
Interesting that in this deserted place many treasures of golden jewelry and IV-V th c. Roman and Byzantyne coins are found. Judging by the time of coining, all treasures were buried at the same time - in 450-475. The time when Attila's state fell. Perhaps after these events new inhabitants arrived from lower Vistula to the southern land of West-Southern Balts and brought these treasures.
We can make a conclusion that not Balts expanded southwards, but newly arrived people from Central Europe inhabited middle Vistula and later some of them mixed with the old inhabitants of Semba. Their ethnic dependency is not clear. Maybe they were Balts who participated in campaigs of the Great Migration, maybe Goths. We can also remember the Old Prussian legend about Widewuto and Bruteno written in Prussian chronicles. However it was, the new people soon mixed with the old inhabitants and later bigger cultural differences in Western Baltic culture are not noticed.