He studied law in Athens and then in Leipzig, where he received his doctorate. He was appointed lecturer in International Law at the University of Athens (1893). He was appointed professor (1896) at the University of Athens in the Chair of Public and Private International Law and later of Constitutional Law (1898). He taught for many years from 1898 to 1922.

He was appointed adviser to the Ministry of Foreign Affairs (1898). He was also a member of the committee and author of the Civil Code (1908). Ambassador of Greece in Vienna 1910-1913. Advisor to the Ministry of Foreign Affairs. Minister of Foreign Affairs in 1914. He disagreed with El. He resigned as Minister of Foreign Affairs in Athens. He became an advisor to the throne. He lived for several years abroad, Italy, Switzerland, Germany, etc. and developed a great deal of scholarly activity on matters of international law. He represented Greece in the League of Nations in 1922 and was very helpful in matters concerning the refugee problem of Greece.

He was appointed Academician in 1926 and then President of the Academy of Athens. He was a member of the International Tribunal of The Hague. He also served as Secretary of the Committee of the Olympic Games of 1895 and of 1921 and 1927. He wrote many treatises on international law and other legal subjects. We selectively mention: The Cretan Question from an International Point of View, The Position of the Great Powers from the Point of View of International Law (1905), The Hague Peace Conference (1908), Abolition of Counterclaims in International Law (1929). etc.