 Altsiok settled in Bavaria with 9,000 Bulgars under Frankish king Dagobert I. Altsiok is known to have moved to the Venetian March with his 700 remaining men after Dagobert I slaughtered most of his people.Paul the Deacon in his "Historia Langobardorum" writing after the year 787 says that in his time Bulgars still inhabited the area, and that even though they speak "Latin," "they have not forsaken the use of their own tongue.