Lafayette

LAFAYETTE, JEFFERSON AND THE COMTE OF TRACY:
HE WAS A FRIEND OF THOMAS JEFFERSON AND LAFAYETTE...

The "Domaine de Tracy" was the property of Antoine Louis Claude Destutt, count of Tracy. One of his friends was General de La Fayette, whose son was married to his daughter Emilie. Both were elected to the States General as members of the nobility and enthusiastically took up the liberal ideas of the beginning of the Revolution.
When, after the arrest ans execution of Louis XVI, events took a more violent turn; they fell away from it and resigned.

He was a member of the Philadelphia American Philosophical Society.