It appears that each of Xenophon Constantinidi's three children became attached to the Agelasto or Negroponte-Agelasto bloodlines through marriage. The bloodlines included Euterpe's son-in-law, the mother-in-law of her sister Evrydiki (abt 1878 - ), and the wife of her brother Spiro (1880-1960).
1. Marie Catherine Andromaque (Michel) de Zogheb, b. 10 Apr 1907, Paris 16ème, Île-de-France, France , d. 18 Sep 2004, Marseille, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur,France (Age 97 years)
1871 - 1962 (91 years)