Charles VI was Holy Roman Emperor and ruler of the Austrian Habsburg monarchy from 1711 until his death, succeeding his elder brother, Joseph I. He unsuccessfully claimed the throne of Spain following the death of his relative, Charles II. In 1708, he married Elisabeth Christine of Brunswick-Wolfenbüttel, by whom he had his four children: Leopold Johann, Maria Theresa, Maria Anna, and Maria Amalia.

Joseph I was Holy Roman Emperor and ruler of the Austrian Habsburg monarchy from 1705 until his death in 1711. He was the eldest son of Leopold I, Holy Roman Emperor from his third wife, Eleonor Magdalene of Neuburg. Joseph was crowned King of Hungary at the age of nine in 1687 and was elected King of the Romans at the age of eleven in 1690. He succeeded to the thrones of Bohemia and the Holy Roman Empire when his father died.