Die Inseln von Kortun in der Ukraine. 1782. Swiss. Drawing, watercolor with pen and gray ink over pencil traces; black-gray border line. Inscribed, signed and dated Ukraine:View between the Kortun Islands with the face turned towards the north-east. August 23, 1782 J: H: Muntz on the verso. Johann Heinrich Müntz, artist (1727-1798). Collections of The Albertina Museum, Vienna, Austria. In the public domain. https://www.europeana.eu/en/item/15508/6053Stromschnellen im Dniepr bei Alt Kudak im Gebiet der Saporoger Kosaken. 1781. Swiss. Watercolor with pen and brush in black-gray over pencil; black-gray framing line. Inscribed, signed and dated Sketched on the afternoon of August 31, 1781, aiming south, J: H: Müntz on the verso. Johann Heinrich Müntz, artist (1727-1798). Collections of The Albertina Museum, Vienna, Austria. In the public domain. https://www.europeana.eu/en/item/15508/6054Stadt und Hafen von Kremenczúk, Ukraine. 1781. Swiss. Watercolor with pen and ink in blacky-gray over pencil traces; black-gray framing line. Inscribed, signed and dated Sketched Wednesday, August 29, 1781 afternoon, aiming east J: H: Müntz. Johann Heinrich Müntz, artist (1727-1798). Collections of The Albertina Museum, Vienna, Austria. In the public domain. https://www.europeana.eu/en/item/15508/6052Landstrich zwischen Kawran und Demki in der Russischen Ukraine. 1783. Swiss. Watercolor with pen and ink in black-gray over pencil; black-gray framing line. Inscribed, signed and dated Sketched on Tuesday, September 9, 1783, afternoon, aiming southwest, behind, on the country that we had just passed J: H: Müntz. on the verso. Johann Heinrich Müntz, artist (1727-1798). Collections of The Albertina Museum, Vienna, Austria. In the public domain. https://www.europeana.eu/en/item/15508/6081
Ukraine became part of Russia as a result of the Great Northern War of 1708 and then by various European/Great Power treaties. Before that it was ruled by the Cossacks and various regional powers going back to the 14th century.