Prince Ioan Grigore Ghica (December 10, 1830 – March 21, 1881) was a Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

n politician who served as the Minister of Foreign Affairs of Principality of Romania from October 17, 1865 until February 10, 1866 and as the Ministry of National Defense of Principality of Romania in two terms from July 19, 1861 until September 29, 1862 and from May 11, 1866 until August 5, 1866. He was the son of the last Prince of Moldavia Grigore Alexandru Ghica

Grigore Alexandru Ghica

Grigore Alexandru Ghica or Ghika was a Prince of Moldavia between October 14, 1849 and June 1853, and again between October 30, 1854 and June 3, 1856...

. Ioan Grigore Ghica also served as the ambassador to Istanbul

Istanbul

Istanbul , historically known as Byzantium and Constantinople , is the largest city of Turkey. Istanbul metropolitan province had 13.26 million people living in it as of December, 2010, which is 18% of Turkey's population and the 3rd largest metropolitan area in Europe after London and...

, Vienna

Vienna

Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

, Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 and Saint Petersburg

Saint Petersburg

Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

.