 Nonetheless, he managed to take the barque with only his ship's long boat.At some undetermined date in the seventeenth century, it is said that he was taken prisoner at the Convento de San Bernardino de Siena in Valladolid, in the present Mexican state of Yucatán.In 1687, de Graaf engaged in a battle off southern Cuba with a Biscayan frigate and the Cuban "Guarda del Costa" (Coast Guard).