America Uber Alles

gw.geneanet.org

https://gw.geneanet.org/tdowling?n=zehringer&oc=0&p=richard+dean&type=tree

en.wikipedia.org

https://en.wikipedia.org/wiki/House_of_Z%C3%A4hringen

de.zxc.wiki

https://de.zxc.wiki/wiki/Zehringen