Arthur Charles Hubert Latham was a French aviation pioneer. He was the first person to attempt to cross the English Channel in an aeroplane. Due to engine failure during his first of two attempts to cross the Channel, he became the first person to land an aeroplane on a body of water.
Latham was born in Paris into a wealthy Protestant family. His French mothers family were the bankers, Mallet Frres et Cie, and his father, Lionel Latham, was the son of Charles Latham, an English merchant adventurer and trader of indigo and other commodities, who had settled in Le Havre in 1829. Hubert Lathams English granduncles were mercantile traders, merchant bankers and lawyers in the City of London and Liverpool and his home was the centuries old Chteau de Maillebois, near Chartres, which his father purchased from Vicomte de Maleyssie in 1882. One of Lathams maternal grandaunts was the mother of the German Chancellor, Theobald von BethmannHollweg, , which made him a second cousin of the aviator.
Source: Wikipedia