Polish nobility in the context of "Marie Louise Gonzaga"

John III Sobieski (Polish: Jan III Sobieski (Polish pronunciation: [ˈjan ˈtʂɛt͡ɕi sɔˈbʲɛskʲi]); Lithuanian: Jonas III Sobieskis (Lithuanian pronunciation: ['joːnäs so'bʲɛskis]); Latin: Ioannes III Sobiscius (Latin pronunciation: [joˈannɛs soˈbiʃiʊs]) 17 August 1629 – 17 June 1696) was King of Poland and Grand Duke of Lithuania from 1674 until his death in 1696.

Born into Polish nobility, Sobieski was educated at the Jagiellonian University and toured Europe in his youth. As a soldier and later commander, he fought in the Khmelnytsky Uprising, the Russo-Polish War and during the Swedish invasion known as the Deluge. Sobieski demonstrated his military prowess during the war against the Ottoman Empire and established himself as a leading figure in Poland and Lithuania. In 1674, he was elected monarch of the Polish–Lithuanian Commonwealth following the sudden and unexpected death of King Michael.

The Austrian nobility (German: österreichischer Adel) is a status group that was officially abolished in 1919 after the fall of Austria-Hungary. Austria's system of nobility was very similar to that of Germany (see German nobility), as both countries were previously part of the Holy Roman Empire (962–1806).

Any noble living in the Habsburg-ruled lands, and who owed allegiance to the dynasty and therefore to the emperor, was also considered part of the Austrian aristocracy. This applied to any member of the Bohemian, Hungarian, Polish, Croatian, and other nobilities in the Habsburg dominions. Attempting to differentiate between ethnicities can be difficult, especially for nobles during the eras of the Holy Roman Empire and the Austro-Hungarian monarchy (1867–1918). A noble from Galicia, for instance, such as the Count Jordan-Rozwadowski (see section "Noble titles" below under Graf/Gräfin (count/countess)), could call himself a Polish noble, but he also rightfully belonged to the Austrian nobility.

Bila Tserkva (Ukrainian: Біла Церква [ˈbilɐ ˈtsɛrkwɐ] ; lit. ''White Church'', Russian: Белая Церковь, Polish: Biała Cerkiew) is a city in central Ukraine. It is situated on the Ros River in the historical region of right-bank Ukraine. It is the largest city in Kyiv Oblast (which does not include the city of Kyiv) and serves as the administrative centre of Bila Tserkva Raion and Bila Tserkva urban hromada, and has a population of 207,273 (2022 estimate)., 205,000 (2024 estimate).

The oldest preserved document that mentions the city, at that time called Yuryiv, is the Hypatian Codex (1115). Historically, the city has been at the centre of the Porossia (River Ros) region. Founded as a border fortification of Kievan Rus', Bila Tserkva later became property of Polish nobility and served as a prominent commercial centre. Since the 19th century, industry and tourism have been important elements of the city's economy. Under Soviet rule, Bila Tserkva became a centre of agricultural education. During the Cold War, a major Soviet Air Force base was located near the city.