 Complete the following phrase:  Gregorio de Laferrère was born in Buenos Aires to Mercedes Pereda, a local heiress, and Alfonso de Laferrère, a prominent French Argentine landowner. One of three brothers, he earned his secondary school education at the Colegio Nacional de Buenos Aires. He began a career in journalism, and wrote for the satirical El Fígaro briefly under the pseudonym of Abel Stewart Escalada. Joining his family for a visit to Paris on the occasion of the 