In the sixth and 7th generations, viticulture unfold to southern and northern Germany. The Frankish King Dagobert I (610-639) is documented as a donor of vineyards to church buildings and monasteries. Wine-developing in the Palatinate is documented inside of a document by King Siegbert III from the 12 months 653 https://project43186.wikihearsay.com/2655057/the_smart_trick_of_wein_that_nobody_is_discussing