 Complete the following phrase:  Like most other officer of his corps, he emigrated around the time of Louis XVIs flight to Varennes, going to Ath, then Koblenz, where the comte dArtois made him his aide-de-camp. He accompanied him in this role during the campaign of 1792 and on his trip to Russia in 1793, where they were well received by Catherine II of Russia. He then went to England, and in spring 1795 joined the 