The north-eastern corner of a map of China (in Italian): "The Kingdom of China, presently called Catay and Mangin, divided into its principal provinces on a most precise map". This part shows includes Sea of Japan and Japan itself. However, neither the La Pérouse Strait nor the Strait of Tartary were known to the cartographer, and therefore Hokkaido and Sakhalin are all part of the mainland, populated by the "Yupi Tartars" (i.e. the "Fishskin Tartars" - the old Chinese name for the Nanai people and related groups). However, the eastern coast of Sakhalin, with Cape Aniwa and Cape Patience are already charted more or less correctly (thanks to a Dutch expedition in the 1640s). Sakhalin and Hokkaido are both represented as one peninsula in Yupi Tartars, and are separated from Japan by "Stretto di Züngar" (today Tsugaru Strait), between today Hokkaido and Honshu (Isola di Niphon). Probably in reference of the city of "Züngar" (today <a href="https://en.wikipedia.org/wiki/Tsugaru,_Aomori" class="extiw" title="en:Tsugaru, Aomori">Tsugaru</a>) shown in north of Honshu.
Giacomo Cantelli da Vignola (1643-1695), Giovanni Giacomo de Rossi (1627-1691)
An antique map from the <a rel="nofollow" class="external text" href="http://library.ust.hk/info/exhibit/maps-2002/">Special Collection "China in Maps"</a> of the Hong Kong University of Science and Technology Library, reproduced by the HKUST Library in the book "China in European Maps", Hong Kong, 2003. <a href="//commons.wikimedia.org/wiki/Special:BookSources/962-86403-9-9" title="Special:BookSources/962-86403-9-9">ISBN 962-86403-9-9</a>.