Giacomo Costantino Beltrami (1779 in Bergamo – January 6, 1855 in Filottrano) was an Italian jurist, author, and explorer, best known for claiming to have discovered the headwaters of the Mississippi River in 1823 while on a trip through much of the United States (later expeditions determined a different source, however). Beltrami County in Minnesota is named for him. He had an extensive network of notable figures for friends and acquaintances, such as members of the powerful Medici family.
Beltrami was the 16th of 17 children.
Spouse: Count Beltrami was married to the sister of Count Bastogi famous for the railway. Count Bastogi had in turn married into the Anglo-English Russian family of Henry Savage Yeames, British Consul-General.[1] Henry Yeames married Wilhelmina von Rahl daughter of Baron von Rahl of Hesse-Cassel banker to the Tsar.
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Categories: Namesakes US Counties | Bergamo, Bergamo | Italian Nobility | Cisalpine Republic