The two-storeyed dome-vaulted chapel has to a great degree kept its original appearance as it was in the days of Prince Eugene.

Carlo Innocenzo Carlone painted a portrayal of God the Father and the Holy Ghost. In conjunction with the altarpiece painted by Francesco Solimena, they represent the Holy Trinity.

The walls of the two lofts show oval medallions in white with depictions of the Christian virtues. The stucco decorations are by Santino Bussi and Alberto Camesina. Remarkable for their high quality are the pews from the time of Prince Eugene.

Marie Christine, Maria Theresa’s favourite daughter, married Duke Albert of Saxony-Tesche here in 1766; he was the founder of the Albertina.