Ferdinand von Spanien
She settled in Alkmaar, where she became acquainted with Maria Tesselschade Visscher, who introduced her to artistic circles, where she was noted to be a great singer, and became the muse of poets. From 1630 onward, she acted as court singer at the court of the general governor of the Spanish Netherlands, Isabella Clara Eugenia and then Cardinal-Infante Ferdinand of Austria. In 1638, for example, she performed to the exiled Maria de Medici. Duarte was famous in contemporary Europe and the subject of poetic celebration for her song.