sentences:  The marriage was not happy and Christiaan disappeared to the East Indies.In 1768 she traveled with Jan Munniks, a young attorney, brother of the celebrated professor of botany Wynoldus Munniks, who had been appointed consul at Messina for the Dutch Republic to France, where she stayed behind because of illness.On the way she met Douwe Sirtema van Grovestins, a former equerry to the widow of Stadtholder William IV, Prince of Orange, who became her lover, and introduced her in higher circles.