Initially, Johann Georg chose a spiritual path and became a Knight of Malta, but later, like all of August's illegitimate sons, he joined the army, starting at the top (as a general).

On 27 November 1764 Johann Georg acquired, for 14,000 thalers, the so-called Zinzendorfschen Garden, located outside Dresden's city gates.

In the middle of the property, the building and landscape architect Friedrich August Krubsacius built magnificent palaces in a reserved form of the Rococo style.

On 30 January 1770, the Chevalier took leave of the army and moved to his garden property, without however renouncing his right to the large urban royal suite.

For the separation of still more existing debts the obligation was imposed on her to offer the garden with the palace first to the Elector and then the prince Karl for 15,000 talers to the purchase.