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Frédéric Émile d'Erlanger

Frédéric Émile, Baron d'Erlanger (19 June 1832 – 22 May 1911) born as Friedrich Emil Erlanger, was a German-French banker and consul. He founded the French branch of the Erlanger banking businesses, Emile Erlanger & Co.

Trading basics

Neapolitan sums

The Neapolitan sums (Polish: Sumy neapolitańskie) refers to a loan made in 1557 by Bona Sforza, dowager Queen of Poland and Grand Duchess of Lithuania, to Philip II of Spain. The debt was never repaid and continued to be disputed between the Polish–Lithuanian Commonwealth and Kingdom of Spain up until the Third Partition in 1795. The phrase sumy neapolitańskie became synonymous in the Po