Otto (died 643 or 644) was the mayor of the palace of

Austrasia Austrasia was a territory which formed the north-eastern section of the Merovingian Kingdom of the Franks during the 6th to 8th centuries. It was centred on the Meuse, Middle Rhine and the Moselle rivers, and was the original territory of the F ...

briefly in the mid-seventh century. Otto was the son of a '' domesticus'' named Uro who served in the court of

Dagobert I Dagobert I ( la, Dagobertus; 605/603 – 19 January 639 AD) was the king of Austrasia (623–634), king of all the Franks (629–634), and king of Neustria and Burgundy (629–639). He has been described as the last king of the Merovingian dy ...

. Otto was raised with Dagobert's son

Sigebert III Sigebert III ( 630–656) was the Merovingian king of Austrasia from 633 to his death around 656. He was described as the first Merovingian ''roi fainéant'' —do-nothing king—, in effect the mayor of the palace ruling the kingdom througho ...

and subsequently acted as Sigebert III's ''baiolos'' (

bailiff A bailiff (from Middle English baillif, Old French ''baillis'', ''bail'' "custody") is a manager, overseer or custodian – a legal officer to whom some degree of authority or jurisdiction is given. Bailiffs are of various kinds and their offi ...

?). On the death of

Pepin of Landen Pepin I (also Peppin, Pipin, or Pippin) of Landen (c. 580 – 27 February 640), also called the Elder or the Old, was the Mayor of the palace of Austrasia under the Merovingian King Dagobert I from 623 to 629. He was also the Mayor for Sig ...

in 639 or 640, Otto challenged the succession of Grimoald to the mayorship. Otto was eventually murdered by

Leuthard II, Duke of Alemannia Leutharis, Leuthari, Leuthard, or Leutharius II (fl. c. 643) was the Duke of Alamannia in the early seventh century. Leuthari murdered Otto, the mayor of the palace of Austrasia, in 643. By doing so he made Grimoald I the mayor of the palace for ...

, at the request of Grimoald.

Sources

*Hummer, Hans J. ''Politics and Power in Early Medieval Europe''. Cambridge University Press: 2005. Mayors of the Palace 640s deaths Year of birth unknown {{Europe-bio-stub