Juan Alberto March Ordinas was a Spanish business magnate, arms and tobacco smuggler, banker and philanthropist.
Closely associated with the Nationalist side during and after the Spanish Civil War, March was the wealthiest man in Spain and the sixth richest in the world. Throughout his life, he accumulated many labels, most notably "the last pirate of the Mediterranean". At his death in 1961, Time called him "the Iberian Croesus".
Born into a humble family of peasants in Mallorca, he was expelled from school at an early age, and began helping his father with his pig farming business while smuggling tobacco from Spanish Morocco. During the Mediterranean theatre of World War I, March was involved in an international affair after he gave supplies to a fleet of submarines of the Austro-Hungarian empire in his island of Cabrera. This action cost him the expropriation of the island by the Government of Spain acting on behalf of Winston Churchill, at the time First Lord of the Admiralty. In 1916, he founded Trasmediterránea, an important shipping company that strengthened March's naval outreach.