Pietro Sebastiani was born in Capannori (Lucca) in 1957, and entered the diplomatic corps in 1984. He served in Moscow, New York, Paris and Brussels. He was Permanent Representative of Italy to the United Nations Organisation and Italian Ambassador to Spain between 2013 and 2016.
He was a member of the Cabinet of the Ministers for Foreign Affairs Andreatta, Elia, Martino, Agnelli and Dini from 1993 to 1996. He was Diplomatic Advisor to the Speaker of the House of Deputies in the 14th Parliament and from 2005 to 2008 Diplomatic Advisor to the President of the Inter-Parliamentary Union in Geneva.
He graduated in Political Sciences with a major in International Law from the "Cesare Alfieri" University of Florence and took courses in International Economics at Harvard University and in International Journalism at Columbia University, New York. He carried out research for two years at the European University Institute of Fiesole and in other British universities, archives and libraries. He is the author of books, papers and articles on historic and political issues.
The ambassador belongs to a number of associations, which include the Accademia degli Incamminati. He was member of the Board of Directors of Cotec-Italia. In 2015 he was awarded the Master de Oro in Economics by the Spanish Real Forum de Alta Direccion.
He has received many awards in Italy and from countries including Austria, Bulgaria, Chile, Germany, Luxembourg, Lithuania, Malta, Poland, Portugal, Romania, San Marino, Slovakia, Spain, Hungary and Uruguay.He is the founder and Honorary President of the Italian Association of the Sudden Infant Death Syndrome "Seeds for SIDS".
He speaks fluent English, French and Spanish and has studied German, Russian and Dutch.
He is married to Maria Cristina Funucci, an artist, architect and designer, and the couple have four children.