(b. 1717, Praha, d. 1767, Praha)
Bohemian painter. He was the son of the painter Christian Grund (c. 1686-1751) and brother to the painters Frantisek Karel Grund (1721-43), Petr Pavel Christian Grund (1722-84).
During his formative years in Vienna he was influenced by Franz de Paula Ferg and the Venetian Baroque painting, however, the main influences came from the French Rococo painting. In the 1750s and 1760s he combined the Dutch subjects with the light and colours of the Rococo.
He produced hundreds of small format paintings, mainly landscapes and genre scenes. He was a leading figure of the Bohemian Rococo painting.