Isaakios Komnenos rebelled against his brother Ioannes II, leaving for the Muslim east

Summary:
He disagreed with Ioannes II over an issue they would later describe as trivial, taking his son, Ioannes, with him. He visited the empire's neighbours, including enemies like Mas'ud of Ikonion, and plotted against his brother. But he had no money, and as Ioannes prospered, Isaakios found it increasingly difficult to get aid against him. His mother, Eirene Doukaina, thought of him as suffering a living death 
Dates:
1130 
Eirene Doukaina, wife of Alexios I (Eirene 61)
Ioannes Komnenos, son of Isaakios, brother of Ioannes II (Ioannes 25002)
  • He left Constantinople with his father, Isaakios 102, and shared his wanderings among the courts of Byzantium's neighbours (:) Niketas Choniates, Historia 32.34-37
Isaakios Komnenos, son of Alexios I (Isaakios 102)
  • He had left Constantinople with Ioannes 25002 over a trifling issue, visited the empire's neighbours (some hostile, like Masud 17001) and plotted against Ioannes 2; but he had no money and found it increasingly hard to get aid for rebellion (:) Niketas Choniates, Historia 32.31-45
  • He went into exile, wandering in distant parts of the east, a heavy fate like a living death (:) Prodromos, Historische Gedichte II.27-28