Lanfredus (Latinised from Lantfrid or Lanfred) (died 730) was duke of Alamannia under Frankish sovereignty from 709 until his death.
After Pipin’s death in 714, Lanfredus dissolved all links with the royal court and its new maior domus Charles Martell.
The Abbey of St. Gall, however, founded 719 by the Alamannic monk Otmar, was favoured by the dukes of Alamannia and the regional aristocracy.
[6] He instigated a revision of the Laws of the Alamans (Lex Alamannorum Lantfridus),[7] a sign and an expression of his claim to be an independent ruler.
Even though in the law-code the king is mentioned as dominus, there is no reference to the role of the maior domus, which is an indication of Lanfredus's loyalty towards the Merovingian dynasty.