This Serbian-American inventor was a person you lived in volantary seculsion from who?
Recluse A recluse is a person who lives in voluntary seclusion from the public and society. The word is from the Latin "recludere", which means "shut up" or "sequester". Historically, the word referred to a hermit's total isolation from the world. Examples are Symeon of Trier, who lived within the great Roman gate Porta Nigra with permission from the Archbishop of Trier, or Theophan the Recluse, the 19th-century Russian Orthodox monk who was later glorified as a saint. Celebrated figures who spent, or have spent, significant portions of their lives as recluses include Virgil, Michelangelo, Isaac Newton, Emily Brontë, J. D. Salinger, Emily Dickinson, Gustave Flaubert, Paul Cézanne, Nikola Tesla, Konstantin Tsiolkovsky, H.P. Lovecraft, Marie Curie, Marcel Proust, Howard Hughes, Greta Garbo, Jackson Pollock, Arturo Benedetti Michelangeli, Jean-Luc Godard, Thomas Pynchon, John Swartzwelder, Paul Allen, Layne Staley and Michael Jackson.
Nikola Grbović Nikola Grbović (; 1793–1806) was a Serbian "obor-knez" of the Kolubara "knežina" of the Valjevo "nahija" in the Sanjak of Smederevo, who later became a Serbian Revolutionary. He was born in Mratišić. He was active in the formation of the district and the Ottoman Serb civil army from 1793–94 to 1796, and took part in the operations against Janissary leader Osman Pazvantoğlu. At the end of November 1797 obor-knezes Aleksa Nenadović, Ilija Birčanin and Nikola Grbović from Valjevo brought their forces to Belgrade and forced the besieging janissary forces to retreat to Smederevo. He participated since the outbreak of the First Serbian Uprising, organizing a detachment of his "knežina" together with his son Milovan. He was a rebel delegate in the talks with Bekir Pasha in 1804. He participated in the liberation of Valjevo and in the first fights around Belgrade.