The Dominican Republic death certificate (acta de defunción) for Constantine, filed with the Junta Central Electoral as record No. 31759. It records:
- Date and time of death: November 8, 1980, 1:30 AM
- Age at death: 64
- Place of death: Calle Arzobispo Meriño No. 154, Zona Colonial, Santo Domingo
- Cause of death: chronic renal failure with uremic cardiac insufficiency
- Certifying physician: Dr. Vinicio Calventi, who would later serve as Vice President of the Dominican Republic (1986–1990)
This filing anchors the Greek-citizenship paperwork on Constantine’s line and resolves what had been one of the longest-standing blanks in the family record.