Xavier de Maistre (French pronunciation: [ɡzavje də mɛstʁ]; 10 October 1763 – 12 June 1852) of Savoy (then part of the Kingdom of Piedmont-Sardinia) was a French military man and author. The younger brother of Joseph de Maistre, a noted philosopher and counter-revolutionary, Xavier was born to an aristocratic family at Chambéry in October 1763. He served when young in the army of Piedmont-Sardinia, and in 1790 wrote his fantasy Voyage autour de ma chambre ("Voyage Around My Room", published 1794), when he was under arrest in Turin as the consequence of a duel. Life.
https://en.wikipedia.org/wiki/Xavier_de_Maistre