Thrasimund I or Transamund I was the Count of Capua and then Duke of Spoleto (663 – 703 AD), a faithful follower of Grimoald I of Benevento

Grimoald I of Benevento

Grimoald I was duke of Benevento and king of the Lombards .Born probably before 610 to Duke Gisulf II of Friuli and the Bavarian princess Ramhilde, daughter of Duke Garibald I of Bavaria, he succeeded his brother Radoald as duke of Benevento...

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Thrasimund assisted Grimoald in usurping the kingship of the Lombards

Lombards

The Lombards , also referred to as Longobards, were a Germanic tribe of Scandinavian origin, who from 568 to 774 ruled a Kingdom in Italy...

. In return, Grimoald gave him his daughter in marriage and granted him the duchy of Spoleto

Duchy of Spoleto

The independent Duchy of Spoleto was a Lombard territory founded about 570 in central Italy by the Lombard dux Faroald.- Lombards :The Lombards, a Germanic people, had invaded Italy in 568 and conquered much of it, establishing a Kingdom divided between several dukes dependent on the King, who had...

 after the death of Atto

Atto of Spoleto

Atto was the Duke of Spoleto from 653 to 663, the successor of Theodelap.Nothing is known of his reign except that he was replaced by Thrasimund, Count of Capua.-Sources:*Paul the Deacon. ....

. Thrasimund co-ruled with his brother Wachilapus and was succeeded by his son Faroald II

Faroald II of Spoleto

Faroald II was the duke of Spoleto from 703, when he succeeded his own father Thrasimund I.Faroald attacked and took Classis, the port of Ravenna, but he was ordered to return it by King Liutprand. Faroald also founded and endowed the monastery of San Pietro in Valle at Ferentillo...

 after a reign of forty years.

Sources

• Paul the Deacon
  Paul the Deacon
  Paul the Deacon , also known as Paulus Diaconus, Warnefred, Barnefridus and Cassinensis, , was a Benedictine monk and historian of the Lombards.-Life:...
  
  . Historia Langobardorum.
• Hodgkin, Thomas
  Thomas Hodgkin (historian)
  Thomas Hodgkin , British historian, son of John Hodgkin , barrister and Quaker minister, and Elizabeth Howard ....
  
  . Italy and Her Invaders. Volume VI.

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