Editing Gregory of Tours (section)

====Book 4 (548–575)====
Book Four continues from when the two remaining sons of Clovis die: Childebert in 558 and Clothar in 561. The last years of Clothar's life see the entire realm of the Franks ruled by him. At the time of his demise in 561 (as under Clovis before him), the kingdom is divided equally between four sons of Clothar: [[Charibert I]], [[Sigebert I]], [[Guntram]], and [[Chilperic I]]; they quarrel for control of the entire realm. A truce between them is maintained until after the death of Charibert I in 567. Clothar's remaining sons fight for the supremacy, with Sigibert showing the strongest military force. Book Four ends with the killing of Sigbert in 575, leaving Chilperic as the dominant king. Gregory of Tours blames [[Fredegund]], the wife of Chilperic, for the assassination. Fredegund, he says, had long held a grudge against Sigibert and his wife [[Brunhilda of Austrasia|Brunhilda]].