Another Lay Use of the Monastic Habit

This portrait of Wenzel Anton Dominik, Prince of Kaunitz-Rietberg (1711–1794) wearing a Franciscan habit around 1759–1761 is an example of European nobility engaging in a religious practice well-known in the baroque era. Aristocrats would dress up as monks and nuns, listen to pious talks held by priests, and then pray. 
Here is an introductory article which offers an overview of similar examples. Pious laity have often sought the privilege of wearing monastic clothing. 
More details about the above portrait to follow in the upcoming publication by Christoph Brandhuber and Oliver Ruggenthaler: Macht, Pracht, Stille. Spiritueller Rückzug am Hof Maria Theresias (Salzburg/Wien 2025).