>>508879629
You can find some good ones in history.

Like Leo the Khazar, a byzantine emperor
https://en.wikipedia.org/wiki/Leo_IV_the_Khazar

The french myth of Melusine was likely about a French king who took a jewish wife who kept the sabbath on Saturday instead of sunday in secret. This is the origin of the Plantagenet bloodline
https://en.wikipedia.org/wiki/Melusine

Very possible the power struggle between the Merovingians and the Carolingians was between an indigenous royal family the Merovingians and the crypto bloodline, the Carolingians.

Very possible the Medici's were crypto jews due to their protective relationship with italy's jewery.