Although a Dutchman, Willems worked with English privateers during the first years of his buccaneering career raiding Rio de la Hacha with Thomas Paine in 1680.
Although Willems did not have a commission himself, he captured a Spanish merchantman with a cargo of sugar and tobacco while sailing with Wright south along the caribbean coast of New Granada actual Colombia.
He and Wright then sailed to the Islas Las Aves and Los Roques where they remained until February 1682 and presumably parted ways soon after.
The buccaneers caught the garrison off guard, many of the soldiers still sleeping, and took out the city's defenses allowing the rest of the fleet to enter the harbor.
[2] In late-November, he joined Michiel Andrieszoon, Francois Le Sage and Laurens de Graaf in attacking Spanish shipping off Cartagena resulting in an altercation with Governor Juan de Pando Estrada who commandeered two Spanish slavers to go after them.