They courted Ducoudray because of his military experience, with the intention of making him interested in leading an armed movement to invade Puerto Rico to convert the island into a republic.
[2] While Ducoudray Holstein was in Curaçao he was visited by numerous men including: A. Mattei (“Matthey”), a businessman of French origin with connections in Puerto Rico, George Curiel a Jewish businessman established beforehand in Saint Thomas who in 1819 would return to his native Curaçao, a sailor whose surname was Bouyet, believed to be Juan Bautista Buyé, a contrabandist of French origin and a collaborator of Roberto Cofresí (a beach in Cabo Rojo bears his name).
Afterward on May 18, 1822 the mayor of Aguadilla informed everything to Coronel don José Navarro, Superior Political Chief, “Intendente General” and Interim Governor of the island.
[2] Ducoudray Holstein's expedition found economic support in Fajardo, Naguabo, Guayama, Mayagüez and Hormigueros, in Puerto Rico, and in Philadelphia, Boston, Baltimore and New York City.
In Philadelphia, Ducoudray and Irvine, alongside forty other persons leased a brig, the "Mary", for $20,000 from its owner Thomas Wattson, who knew the purpose of the expedition.
They acquired numerous rifles, pistols, cartridges, gunpowder and other munitions of war, a cargo of flour and left Philadelphia en route to the Antilles in August 1822.
[2] Three neighbors from Fajardo appeared on September 13, 1822 before Don Francisco González de Linares, first Civil Governor of Puerto Rico, to inform him that they had discovered the existence of a revolutionary movement for the independence of the island, this movement had support abroad and had many followers on the island, among whom was a resident Frenchman from Fajardo called don Pedro Dubois; Derzá, a Dutchman from Guayama and José Vicente Roman, a Saint Tomas resident of Puerto Rico since 1811.
[2] Under instructions, seven hundred citizens of France and Germany, under the orders of the Ducoudray Holstein had departed from Boston, headed to the island of San Tomas with nine schooners to form an expedition against Puerto Rico.
Meanwhile, Simon Bolivar launched his first call for a congress to meet representatives of the Hispanic peoples of the Americas to join efforts and finish his liberating work.
[2] Spanish authorities in Puerto Rico were well aware of what was happening, because the Governor of Saint Barthélemy, Johan Norderling, told them two brigantines and a schooner - part of the expedition commanded by Ducoudray Holstein, consisting of eight to nine ships with four hundred to five hundred men, six thousand rifles and large collection of gear to attack Puerto Rico - had arrived from New York and Boston to the island of Saint Barthélemy, which was a neutral port and a base of operations accessible to all, bound for the Dutch Island of Curaçao.
Another communication from New York reported Puerto Rican authorities that some local separatists had forwarded the sum of twenty-four thousand pesos to finance the costs of this expedition.
[2] In the midst of his journey between San Bartolomé island and the port of La Guaira (Venezuela), Ducoudray and Irvine confronted a storm and rough seas which caused failures in two ships and forced them to change their plans.
Ducoudray, who had disembarked and was staying in attorney Elsevier house as a guest was arrested on September 23, 1822 and authorities occupied the valuable cargo of weapons that they brought.
Disembarking the valuable cargo of Ducoudray expedition ships, Curaçao's Dutch authorities found 6,000 rifles, 500 carbines, 150 pairs of pistols, 12 campaign cannons, 6 campaign gun carriages, 200 mounts, 15 cartridges barrels, 60 barrels of gunpowder and two boxes, one containing printed proclamations prepared in advance to be used as goals of the invasion were being achieved, and which revealed the purpose of the expedition, and the other filled with Cockades of four colors for the clothing of the expeditionary forces.
He was tried for the crime of conspiracy with foreigners, found guilty and executed on October 12, 1822 in the presence of slaves from several ingenios involved in the plot, in Guayama and in the vicinity of Añasco, place chosen by Ducoudray Holstein to carry out the landing of troops because of its lack of fortifications with artillery and its convenient proximity to Mayaguez.
In the same document they held the Spanish king responsible for treating: “us a subjects, as slaves; it has been deaf to our just and lawful remonstrances,” and later writing that “Fully impressed with these truths, we declare solemnly before the Almighty God, before the whole Universe, that we are resolved to suffer a similar tyranny no longer.
Later on the declaration appoints the general-in-chief of the expedition (Ducoudray-Holstein) as president and provisional civil, political, and military chief until a National Congress could be assembled to discuss the project of a constitution and the installation of legislative, judicial, and executive powers.
Ducoudray Holstein and Baptiste Irvine were judged in Curaçao during more than ten months as mercenaries and for disturbing the peace for sailing using false Dutch papers.
Eventually Ducoudray Holstein and Baptiste Irvine were found guilty, sentenced to death and their possessions were confiscated by the Dutch authorities because of their alleged criminal acts.
In fact, Leonard Sistare, who was convicted of altering the paper of the brig The Eendracht, had been allowed to leave Curaçao without receiving punishment or suffering any penalty.
Then they requested a reconsideration of that judgment and this resource was also denied, but discomfort and the public outcry grew in such a way and came to have such a magnitude that the Governor, informed by his spies, instructed the President of the Court to grant the appeal.
[5] The Minister of The Colonies of the Netherlands ordered the Governor of Curaçao to suspend all legal proceedings, which should be annulled and their records destroyed, that the accused be treated according to their ranks and education, released and that their expenses be paid until they reach a place chosen by them.