section_heading: Obitelj
paragraph_text: Po supruzi Theodori Kantakouzene, Alexios III imao je sedmero djece:<ref>Donald M. Nicol, The Byzantine family of Kantakouzenos (Cantacuzenus) ca. 1100 – 1460: a genealogical and prosopographical study (Washington, D.C.: Dumbarton Oaks Center for Byzantine Studies, 1969), pp. 145f