In 1813 Simón Bolívar appointed Chassériau Minister of the Interior and the Police in Cartagena, Colombia with his friend Antoine Leleux, who had the portfolio of War.
On 10 December 1815 a few hours before the assassination attempt, Chassériau visited Bolivar and gave him money to seek alternative accommodation.
Thus, the Liberator left the room where José Antonio Páez had slept for several nights and depended on the guesthouse Rafael Pisce at the corner of Prince and White streets.
The same night, Pio the servant of Bolivar and Paez plunged a knife into the neck of Captain Felix Amestoy, thinking it was the Liberator.
[7][8][9] In 1816, Chassériau helped finance Simón Bolívar expedition to los Cayos in the southwestern part of Haiti.
To collect 3,000 pesos, Chassériau formed a consortium with Jean Pavageau, Michael Scott, George Robertson, S. Campbell and Maxwell Hyslop.
He married in 1806, Marie Madeleine Couret de la Blaquière, daughter of a wealthy French owner in Santo Domingo.