Corneliszoon Hooft. Huygens exchanged many poems with Anna. In 1621 a poetic exchange with Hooft also starts. Both would always try to exceed the other. In October of that year Huygens sent Jacob Cats a large poem in Dutch, entitled 't Voorhout, about a woodland near the Hague. In December he started writing 't Kostelick Mal, a satirical treatment of the nonsense of the current vogue. In 1623 Huygens wrote his Printen, a description of several characteristics of people. This satirical, moralising work was one of the most difficult of Huygens' poems. In the same year Maria Tesselschade and Allard Crombalch were married. For this occasion verses were written by Huygens, Hooft and Vondel. During the festival, Constantijn flirted with Machteld of Camps. As a result of this he wrote the poem Vier en Vlam. In 1625 the work Otia, or Ledige Uren, was published. This work showcased his collected poems. English knighthood and marriage In 1622, when Constantijn stayed as a diplomat for more than one year in England, he was knighted by King James I. This marked the end of Constantijn's formative years, and of his youth. During his time in England, in December 1622, he was robbed of his papers and £200 in gold from his coach as he set out on the way to Newmarket. Huygens was employed as a secretary to Frederick Henry, Prince of Orange, who—after the death of Maurits of Orange—was appointed as stadtholder. In 1626 Constantijn fell in love with Suzanna van Baerle after earlier courtship by the Huygens family to win her for his brother Maurits had failed. Constantijn wrote several sonnets for her, in which he calls her Sterre (Star). They wed on 6 April 1627. Huygens describes their marriage in Dagh-werck, a description of one day. He worked on this piece, which contains almost 2000 lines, during the entire time they were married. In one of the preserved manuscripts of this work it appears Suzanna transcribed (or wrote herself) a substantial portion of the work, suggesting a close collaboration between husband and wife. The couple had five children: in 1628 their first son, Constantijn Jr., in 1629 Christiaan, in 1631 Lodewijk and in 1633 Philips. In 1637 their daughter Suzanna was born; shortly after her birth their mother died. Education of his sons and the new royal Prince In 1645, his sons Constantijn Jr. and Christiaan began their studies