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"Johann Jakob Schumacher (russisch Иоганн Якоб Шумахер; * 1701 in Colmar; † 1767 in St. Petersburg) war ein elsässisch-russischer Architekt des Barock." - (Wikipedia (de) 21.08.2022)
(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.)