Editing Constantijn Huygens (section)

==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.