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This article contains a translation of Friedrich IX. (Hohenzollern) from de.wikipedia.

In looking through the pages to try and tease apart the relationships between the Counts of Zollern, I have found a puzzle:

Frederick XI says that he died in 1401 Frederick X says that he died in 1412, but that Frederick XI succeeded him upon his death Zollern omits Frederick X from the list of counts, going straight from Frederick IX to Frederick XI.

The German page de:Grafschaft_Hohenzollern includes Frederick X in the list, but also includes the contradiction in dates above. 1bandsaw ( talk) 03:17, 18 November 2013 (UTC) reply