another exclusive Patek Philippe timepiece, to be worn pinned to clothing. This watch was suspended from a diamond and enamel brooch. In 1868, Patek Philippe created the first Swiss wristwatch for Countess Koscowicz of Hungary. In March 1877, Antoni Patek died at the age of 65, but his only son, Léon Mecyslas Vincent, did not join the business. As a result, Joseph Antoine Bénassy-Philippe, one of Adrien Philippe's sons-in-law, succeeded Antoni Patek's position. In 1887, the cross of one of the 4 Military Orders of Spain, the Order of Calatrava, became the registered company logo of Patek Philippe as a sympathetic allusion to the still extant order of Catholic knights that fought the Muslims in the Crusades. In 1891, the 76-year-old Adrien Philippe handed over his position in the business to his youngest son Joseph Emile Philippe, together with Francois Antoine Conty. Adrien Philippe died in January 1894. Company restructuring 1901 saw the transformation of Patek Philippe into a joint-stock company, Ancienne Manufacture d'horlogerie Patek, Philippe & Cie, Société Anonyme, initiated by J. A. Bénassy-Philippe and Joseph E. Philippe. Still being run as a family business, Patek Philippe then had seven shareholders, five of whom formed the board of directors with J. A. Bénassy-Philippe being the chairman. Joseph E. Philippe's son later joined the company, and he was the last offspring of the founders in the business. In 1915, Albert Einstein ordered a gold pocket watch from Patek Philippe; in that year, he completed his Theory of General Relativity. The Swiss Stern family has owned Patek Philippe since 1932 when Charles Stern and Jean Stern acquired the company during the Great Depression. The Stern brothers' company, Fabrique de Cadrans Sterns Frères, had been a business partner of Patek Philippe as its supplier of watch dials. In 1935, Patek Philippe was brought to American markets by New York-based Henri Stern Watch Agency, where it was sold as a sister brand alongside Universal Genève. In 1958, Henri Stern, the son of Charles Stern, became the president of Patek Philippe. Alan Banbery, who previously designed Universal's "Compax" movements and worked as a horologist for London's Garrard & Co, would take on the position of Director of Sales in 1965 and later authored official reference books on vintage Patek Philippe pocket watches and chronographs. Recent development In 1993, Philippe Stern, the son of Henry Stern, became the president of the company. He initiated the