Lantfrid
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Lantfrid (also Lanfred, latinized Lantfridus or Lanfredus, died 730) was duke of Alamannia under Frankish sovereignty from 709 until his death. He was succeeded by his brother Theudebald. Both Lantfrid and his brother were hostile towards the Frankish maior domus, and when Saint Pirmin founded the Reichenau Abbey under the protection of Charles Martel, the brothers considered this a provocation and Theudebald ob odium Karoli ("out of hatred against Charles") evicted Pirmin and his successor Heddo from Reichenau.
Lantfrid codified the Lex Alemannorum (Lex Alamannorum Lanfridana) in 720.