Son of the Spaniard Manuel Moreno y Argumosa and Dona Maria del Valle, the eldest of 14 siblings, he was born on September 23, 1778 in Buenos Aires.
Student of Logic, Philosophy, Latin and Law.
1801 He marries in Chiquisaca and in 1805 Mariano, his son, is born.
1809 write “The representation of the landowners“, document quickly disseminated throughout the viceroyalty, in which it advocates freedom of trade.
1810 Rapporteur of the Great Hearing, the First Board having already been constituted, with Moreno being its secretary and soul and directing the government, war and foreign relations departments.
Editor of the newspaper “The Buenos Aires Gazette“, where he promoted the dissemination of revolutionary objectives to the provinces and fought for the total independence of the Argentine territory as a democratic republic.
Founder of the public library. Establishes the academy of mathematics and military instruction for officers.
At the age of thirty-three, he created an armaments factory, decreed the rehabilitation of the ports of Ensenada, Barragán and Patagones.
He devised the incorporation of nine deputies to the Board but found no support for his project and resigned from his position.
He entrusts the mission of going to England as Minister Plenipotentiary to increase his friendship with the English government. He clashes strongly with Saavedra as a result of his politics.
1811 He opens a trip to London and Guadalupe, his wife, who had received in an anonymous parcel a mourning fan, a veil and a pair of black gloves, began to write dozens of letters to her husband. In one of them he said: “Moreno, if you do not harm yourself, try to come as soon as you can or make me carry away because without you I cannot live. I have no taste at all to consider that you are sick or sad without having your wife and your son comfort you; or Perhaps you have already found an English woman to take my place? Don’t do that Moreno, when an English woman tempts you, remember that you have a faithful woman whom you offend after God. “, but Moreno mysteriously dies while traveling.
They recorded his date of death on March 4, 1811 on the high seas, and a cardiovascular injury of rheumatic origin was attached as the cause of it, but Mariano Moreno had died ten days before, after ingesting a suspicious medicine given by the captain of the ship. His body was thrown into the sea wrapped in an English flag.As a result, Saavedra quoted his famous phrase: “It took so much water to put out so much fire”.
The apothecaries of the time used to describe the symptoms produced by the ingestion of arsenic like a fire that burns the entrails.