Enea Silvio Piccolomini (German: Johann Norbert Piccolomini; Papal States, c. 1650 – Pristina or Skopje, Ottoman Empire, 9 November 1689) was a Sienese nobleman whose lineage included two popes, and who served in the Habsburg army of Leopold I, Holy Roman Emperor. He is known for leading a campaign against the Ottomans in Bosnia, Macedonia and Kosovo in 1689, and for setting on fire Skopje, the present day capital of the Republic of North Macedonia. Origins Enea Silvio Piccolomini came from the long-established noble family Piccolomini, which included two popes: Pius II (born Enea Silvio Piccolomini) and Pius III (born Francesco Todeschini Piccolomini), as well as the Generalfeldmarschall Ottavio Piccolomini. Early career Young nobles left Siena individually and contacted the important Italian lobby in Vienna, hoping to obtain junior positions in some German regiment. In February 1660 Enea Silvio also left Siena to look for a career in Vienna. Enea Silvio's father established him in an apartment in the imperial capital, with a page, two valets, and a groom for his horses, while the youngster sought audiences with the emperor Leopold I, empress, the archduke and important ministers on the credentials of his famous ancestors. A breakthrough came when he managed to obtain a position in the regiment of the minister Count Rabassa. Enea Silvio's situation, like that of other young German and Italian officers, was precarious. When the emperor dissolved some of his regiments in October 1660, he narrowly escaped complete unemployment and was happy to be a simple comet in his patron's cavalry regiment. In 1675 Enea Silvio was a lieutenant-colonel on a campaign. He describes some desperate and bloody engagements he fought against the French in the Rhineland under Montecuccoli. Although his court patron, the empress Claudia Felicitas of Austria died in 1676, he gained sudden popularity with the court, and in January 1677 he describes himself as being feted by the emperor and all the ministers in Vienna - appearing to have as many friends at court as if he had never left it. The last letter from November 1681 shows him negotiating through the Dowager Empress Leonora for the positions of pages for his nephews; for him, they represented two more Piccolomini and Sienese in Germany. Campaign in the Balkans After the siege of Vienna (1683), emperor Leopold I mounted a series of campaigns against the Ottomans (see: Great Turkish War), to capture territories of