Giacomo Beltrami
Giacomo Costantino Beltrami (1779 – January 6, 1855) was an Italian
jurist, author, and explorer, 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). In Minnesota,
Beltrami (in Polk County) and
Beltrami County are named for him. He had an extensive network of notable figures for friends and acquaintances, including members of the powerful
Medici family.
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