Descartes (1650). Writing He still tried to find time to publish more of his work. In 1647 a number of Huygens' musical creations, Pathodia sacra et profana, was published in Paris. It contained vocal compositions in Latin (Psalms), French, and Italian (secular texts). The work was dedicated to Utricia Ogle, a niece of an English diplomat. In 1648 Huygens wrote Twee ongepaerde handen for harpsichord. This work was dedicated to Marietje Casembroot, a twenty-five-year-old harpsichord player, with whom he shared his love of music. In 1657 the collected work of his Dutch poems, the Koren-bloemen appears. Some of its contents contain: Heilighe Daghen (1645), Ooghen-troost (1647), Hofwijck (1653) and Trijntje Cornelis (1653). This last work, Trijntje Cornelis, is an explosion of Huygens' creativity. It testifies to the rare language - and expressive capacity - of the author. Considering that the piece was written in a rather short time, it can be considered work of an enormous performance. Since his mother Suzanna was from Antwerp, he visited there often and Trijntje Cornelis takes place in Antwerp. In 1660 his daughter Suzanna married her cousin, Philips Doublet, son of Huygens' sister Geertruijd. In 1661, a grandfather by now, Huygens was sent to France by the circle of tutors of William III, to recover possession of the county of Orange. The county was returned to the family of Orange-Nassau in 1665 and Huygens returned to the Netherlands. On his return, Huygens designed the new sand road in The Hague, running through the dunes to Scheveningen. He had already planned this road in 1653, and wrote about it in his work the Zee-straet. The road was made according to Huygens' design. In 1676 the second edition of the Koren-bloemen appeared, a collected work containing 27 books. New in this edition were the Zee-straet, the Mengelingh (a section of serious poems written after 1657) and seven books with snel-dichten (quick poems). As he was older now, Huygens found refuge in music. He wrote around 769 compositions during his lifetime. Legacy Constantijn Huygens died in The Hague on Good Friday, 28 March 1687 at the age of 90. A week later he was buried in the Grote Kerk in the Hague. His son, the scientist Christiaan Huygens was later buried with his father. In 1947 a literary award was created, the Constantijn Huygens Prize, to honor his legacy. Constantijn Huygens in fiction Constantijn Huygens plays a