Board Thread:Questions and Answers/@comment-27449779-20151222131224/@comment-44061-20151223140147

Im not sure where anyone got the idea that Kaien died 50 yrs before the current events. Also while there are hierarchal tiers to nobility if you loose its gone on any level. Branch or otherwise lose of prestige is something that affects all. We do not know why they lost their status. But Considering what Raniku said they likely didnt lose it till after Isshin left and Kaien likely didnt die until somewhere after he left as well.