Ambrosius Franziskus von Spee was elevated to the rank of Imperial Count by Emperor Charles VI On May 9, 1739, at the age of nine.[3] He entered the service of the Duchy of Jülich-Berg, which belonged to the Electorate of the Palatinate, both of which were incorporated into the state of the Electorate of the Palatinate-Bavaria in 1777.[4]
The nobleman held the offices of Privy Councillor, Chamberlain (from 1752), and Vice President of the Court Chamber of Jülich-Berg. He also served as District Administrator of Kaster and Jüchen.[5]
Count von Spee was a Knight of the Order of the Palatinate Lion.[6]
He had his seat at Heltorf Castle and owned seven other manors; his wife and his son Carl-Wilhelm inherited the possessions of the noble family of Hillesheim, which had died out in the male line in 1785, especially Ahrenthal Castle.[7]