- Georg Wilhelm August Mertens
![Male Male](themes/xenea/images/small/male.gif) Birth - 21 December 1845 (6 year anniversary) - Eldingen-Wohlenrode, Niedersachsen, Deutschland - Jan Kouws
![Male Male](themes/xenea/images/small/male.gif) Birth - 21 December 1841 (10 year anniversary) - Groesbeek, Gelderland, Nederland - Maria van Ingen
![Female Female](themes/xenea/images/small/female.gif) - Corneille Jean Kraijenhoff
![Male Male](themes/xenea/images/small/male.gif) Birth - 21 December 1788 (63 year anniversary) - Amsterdam, Noord-Holland, Nederland - Heinrich Cristian Fieker
![Male Male](themes/xenea/images/small/male.gif) Death - 21 December 1780 (71 year anniversary) - Stöckey, Thüringen, Deutschland - Anna Maria Vogt
![Female Female](themes/xenea/images/small/female.gif) Birth - 21 December 1730 (121 year anniversary) - Kamp-Bornhofen-Kamp, Rheinland-Pfalz, Deutschland
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