"Johann Friedrich Reiffenstein(22 November 1719, Ragnit, then in East Prussia – 6 October 1793, Rome) was a German cicerone for grand tourists, painter, antiquarian and agent for art collectors in Rome." - (en.wikipedia.org 11.11.2019)
en
(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)
)
