Christian Wiener
Ludwig Christian Wiener ( 7 December 1826 Darmstadt – 31 July 1896 Karlsruhe ) was a German mathematician who specialized in descriptive geometry . 
<triplet> Christian Wiener <subj> 7 December 1826 <obj> date of birth <subj> Darmstadt <obj> place of birth <subj> 31 July 1896 <obj> date of death <subj> Karlsruhe <obj> place of death