The reign of John II is less well chronicled than those of his father, Alexios I, or successor, Manuel I, and coverage of the life of his son Alexios is very sparse.
Masa pemerintahan Ioannes II kurang baik dicatat daripada ayahandanya, Alexius I, atau penerusnya, Manouel I, dan liputan tentang kehidupan putranya Alexius sangat jarang.