David Schwarz, the inventor of the Jewish - Hungarian descent who has lived in Zagreb in Zrinjevac. He was a timber merchant building who wanted to make a manageable air craft. He was the first inventor who built a prototype of a gasoline engine, in St. Petersburg under the patronage of Emperor Alexander III made ​​the first aerial maneuver the ship in the world. Following allegations that the Austrian spy destroyed structure and fled to Germany where the 1890th was drafted first air ship (dirigibles). The first unofficial flight was conducted 1896th , when the ship raised only one meter. The first official flight was scheduled for 15th January 1897th but two days earlier, while the expected Schwarzov arrival in Berlin, he died of a stroke. After his death, plans for the spacecraft from Schwarz's widow bought a German General, Count Ferdinand von Zeppelin.