He is remembered for his patronage of music and his relationships with Wolfgang Amadeus Mozart and Ludwig van Beethoven.
His estates were located in Grätz, in the Austrian part of the historic province of Silesia, most of which was conquered by Prussia earlier in the century.
The location is today called Hradec nad Moravicí and is within the borders of the Czech Republic.
[6] In 1800, Lichnowsky gave Beethoven an annual allowance of 600 florins until such time as he found a regular appointment as a musician.
The stipend continued until 1806, when a furious quarrel erupted between the two, terminating their friendship: Beethoven, staying at Lichnowsky's country estate, had refused to play for visiting French officers.