Isaac Komnenos of Cyprus different from Isaac I Komnenos
Family
At the death of Byzantine emperor John II Komnenos in 1143, the throne passed not to his third and oldest living son, Isaac Komnenos, but his youngest son, Manuel I Komnenos, who successfully claimed the throne. Isaac nevertheless served amiably as sebastokrator, and his first wife Theodora Kamaterina (d. 1144) bore him a daughter, Irene Komnene, and other children. Irene Komnene married an unnamed Doukas Kamateros and gave birth to Isaac Komnenos, a minor member of the Komnenos family, c. 1155.
not same as not identical to distinct from separate from unlike