Dynamius, meanwhile, blocked Gundulf, a duke of an important senatorial family and Childebert's former "domesticus", from entering Marseille on behalf of Childebert. Eventually he was forced to yield, though he later arrested Theodore again and had him sent to Guntram. Childebert replaced him in Provence by Nicetius (585). Despite his revolt, Childebert formally restored Dynamius to favour on 28 November 587. But with the assassination of Chilperic in 584 and the dangers occasioned to the French monarchy by the expedition of Gundoald in 585, Childebert threw himself unreservedly into the arms of Guntram. By the Treaty of Andelot of 587, Childebert was recognised as Guntram's heir, and with his uncle's help he quelled the revolts of the nobles and succeeded in seizing the castle of Woëwre. Many attempts were made on his life by Fredegund, wife of Chilperic, who was anxious to secure Guntram's inheritance for her son Clotaire II. Childebert II had relations with the Byzantine Empire, and fought on several occasions in the name of the Emperor Maurice, against the Lombards in Italy, with limited success. On the death of Guntram in 592, Childebert annexed the kingdom of Burgundy, and even contemplated seizing Clotaire's estates and becoming sole king of the Franks. However, he and his young wife Faileuba were poisoned to death in 595. He had two minor sons: the older, Theudebert II, inherited Austrasia with its capital at Metz, and the younger, Theuderic II received Guntram's former kingdom of Burgundy, with its capital at Orléans. Sex and sexuality in speculative fiction  Sexual themes are frequently used in science fiction or related genres. Such elements may include depictions of realistic sexual interactions in a science fictional setting, a protagonist with an alternative sexuality, a sexual encounter between a human and a fictional extraterrestrial, or exploration of the varieties of sexual experience that deviate from the conventional. Science fiction and fantasy have sometimes been more constrained than non-genre narrative forms in their depictions of sexuality and gender. However, speculative fiction (SF) and soft science fiction also offers the freedom to imagine alien or galactic societies different from real-life cultures, making it a tool to examine sexual bias, heteronormativity, and gender bias and enabling the reader to reconsider his or her cultural assumptions.