Complex sentence: The document makes it clear that Raffelstetten was a place where German slave traders and their Slavic counterparts exchanged goods: salt, weapons, and ornaments were sought by slave trading adventurers.
Split into simpler sentences: The document makes it clear that Raffelstetten was a place where German slave traders and their Slavic counterparts exchanged goods. Salt, weapons, and ornaments were sought by slave trading adventurers.