 A. Feuchtmayer was born in Linz, a member of the famous Feuchtmayer family of the Wessobrunner School.He was the son of Franz Joseph Feuchtmayer (1660–1718); the nephew of Johann Michael Feuchtmayer (the Elder) and Michael Feuchtmayer (b.1667); the first cousin of Franz Xaver Feuchtmayer (the Elder) (1705–1764) and Johann Michael Feuchtmayer (the Younger) (1709–1772); and the first cousin once removed of Franz Xaver Feuchtmayer (the Younger) (b.