Leopold Leonard, Count of Thun

He was the youngest of twelve children from the first marriage of Johann Joseph Count von Thun and Hohenstein with Maria Christiana Countess of Hohenzollern and Hechingen.

After the death of his cousin, the prince-bishop Thomas Johann Graf von Thun and Hohenstein, he was elected by the chapter of the cathedral on 13 December 1796 as his successor.

Thun handed over his business affairs to his general vicar, Count Auersperg, and episcopal functions to his auxiliary bishop, Karl Kajetan von Gaisruck.

His tomb, built by Václav Prachner, can be found in Košíře, in the cemetery of the Lesser Side, in Prague.

Leopold Leonhard Count von Thun and Hohenstein lived up to his death on his property in Cibulka near Prague, the business in the bishopric of Passau took the spiritual council.