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Literally every Roman Emperor after Vespasian had jewish blood (I suspect a couple before aswell: Nero, and probably Julius Caesar). All the elite men during the Flavian period had jewish wives.
From the above link:
>A lot of prominent Roman men were married to jewish women: Caligula (married to Alexander's sister "Milonia Caesonia"), Nero (Poppaea Sabina. Note also that Rabbi Meir is a descendant of Nero, so Nero might have been a jew as well), Vespasian (Cleopatra Selene), Titus (Berenice), Domitian (married "Milonia Caesonia's niece"), Gaius Calpurnius Piso, M. Plancius Varus (married to Alexander the Alabarch's daughter Julia Ammia), Antonius Felix, Pliny the Younger, etc., so it seems likely that Alexander was strategic in marrying jewish women off to wealthy and powerful Roman men, therefore creating a half jewish upperclass. One jewish woman who was married to a prominent man in Flavian Rome to take note of is 'Arria the Younger' ('Arria' from her father's name judean king Aristobulus IV who was the son of King Herod and Alexander's brother) who married the wealthy and aristocratic senator Gaius Calpurnius Piso. Every Roman Emperor from Antoninus Pius (86-161 C.E.) onward was documented to have descended from her.
See attached picture. Notice how the emperors progressively got darker after the jew vespasian?
