The emphasis of Huygens' activities moved more and more to his presidency of the Council of the house of Orange, which was in the hands of the young Prince inheritor, a small baby. He traveled frequently during that time, in connection with his work. There were however strong disagreements between the baby's widowed grandmother Amalia van Solms, and its widowed mother (her daughter in law) Mary, Princess Royal, (4 November 1631 – 24 December 1660, aged 29) on even the name for christening the Dutch-English Royal newborn. In 1657, his son Philips died after a short sickness during his Grand Tour while in Prussia. In that same year Huygens became seriously ill, but healed in a miraculous manner.
The emphasis of Huygens' activities moved more and more to his presidency of the Council of the house of Orange which was in the hands of the young Prince inheritor a small baby He traveled frequently during that time in connection with his work There were however strong disagreements between the baby's widowed grandmother Amalia van Solms and its widowed mother (her daughter in law) Mary Princess Royal (4 November 1631 – 24 December 1660 aged 29) on even the name for christening the Dutch-English Royal newborn In 1657 his son Philips died after a short sickness during his Grand Tour while in Prussia In that same year Huygens became seriously ill but healed in a miraculous manner