Christiaan Huygens [SEP] father
, he did hypothesize on the possibility of extraterrestrial life in his "Cosmotheoros", which was published shortly before his death in 1695. He speculated that extraterrestrial life was possible on planets similar to Earth and wrote that the availability of water in liquid form was a necessity for life.
Early life.
Christiaan Huygens was born on 14 April 1629 in The Hague, into a rich and influential Dutch family, the second son of Constantijn Huygens. Christiaan was named after his paternal grandfather. His mother was Suzanna van Baerle
Christiaan Bangeman Huygens
Jhr. Christaan Diederik Emerens Johan Bangeman Huygens (31 October 1772 in Sint-Oedenrode – 24 March 1857 in Maastricht) was a Dutch diplomat and civil servant, from 1825 to 1832 Minister Plenipotentiary of the Kingdom of the Netherlands in Washington, DC.
Career.
Bangeman Huygens was the son of Willem Vincent Bangeman, a merchant in the Dutch East India Company, and Catharina Constantia Huygens (whose surname he in 1781 added to that of his father). 
He became a partisan of