Parents Conrad, Count Palatine of the Rhine Irmengard of Henneberg Date of Birth 1177 Place of Birth Hohenstaufen, Schwaben, Bavaria Date of Death 9 May 1204 Source(s) http://homepages.rpi.edu/~holmes/Hobbies/Genealogy2/ps13/ps13_111.htm https://en.wikipedia.org/wiki/Agnes_of_Hohenstaufen