Demetrios Kantakouzenos

http://genealogy.euweb.cz/byzant/byzant5.html

• E1. Georgios Palaiologos Kantakouzenos "Sachatai", a distinguished scholar and military commander, he defended Smederevo against the attack of the Hungarians in 1456, +1456-59; m Maria Razi
  • F4. Demetrios Kantakouzenos

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Although there is no surviving record of his wife's name, Hugues Busac credits George Palaiologos Kantakouzenos, with a family of nine children, four sons and five daughters. According to Nicol, they are

4. Demetrios Kantakouzenos, of whom nothing certain is known

• https://en.wikipedia.org/wiki/George_Palaiologos_Kantakouzenos