Sigebert I


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Sigebert I

(sĭg`əbərt), d. 575, Frankish king of Austrasia (561–75), son of Clotaire I. He constantly feuded with his brother Chilperic IChilperic I
, d. 584, Frankish king of Neustria (561–84), son of Clotaire I. He feuded bitterly with his brother Sigebert I, who had inherited the E Frankish kingdom that came to be known as Austrasia.
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, who had inherited the western portion of the Frankish lands, which came to be known as Neustria. The hatred between the two was intensified after Chilperic murdered (567) his wife, Galswintha, who was the sister of Sigebert's wife, BrunhildaBrunhilda
or Brunehaut
, d. 613, Frankish queen, wife of Sigebert I of the East Frankish kingdom of Austrasia; daughter of Athanagild, the Visigothic king of Spain.
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. When Chilperic attacked Austrasia in 573, a desire for vengeance made Sigebert vindictive, and in the fighting he overran Neustria. He was about to be proclaimed king of Neustria when he was assassinated by order of FredegundeFredegunde
, c.545–597, Frankish queen. The mistress of King Chilperic I of Neustria, she became his wife after inducing him to murder his wife Galswintha (567). Fredegunde and Brunhilda, Galswintha's sister and wife of King Sigebert I of Austrasia, were among the leading
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, whom Chilperic had married after Galswintha's death.