Prince Constantine-Alexios of Greece and Denmark (Greek: Κωνσταντίνος Αλέξιος Ντε Γκρες, romanized: Konstantínos-Aléxios de Grèce; born 29 October 1998) is a Greek painter, sculptor, and member of the former Greek royal family. Being the eldest son and second child of Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece, he is heir apparent to his father's role as the head of the royal house of Greece.