I researched in Narutopedia on the Sage of Six Paths, the Uchiha clan, and the Hyuga clan. One citation stated that there were rumors that the Hyuga clan brought about the descention of the Uchiha clan. But what we remember of the Sage of Six Paths is that he was the father of the Senju and Uchiha blood and that his two sons started the Senju and Uchiha families. If this were possible and the rumor is plausible, then would this make the Sage of Six Paths a Hyuga? There's no other way of explaining this connection. The Sage of Six Paths couldn't have instead give birth to a Hyuga, because at that point, the age-old feud would instead be with the Senju and Hyuga clans. Here's the direct page from the manga:
It makes me wonder if anyone else asked about this.
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It makes me wonder if anyone else asked about this.