Some Palestinians are Christian. Some might even be able to trace their DNA to the earliest Christians (who did originate from that part of the world).
Unfortunately finding decent Palestinians are rare..right now they are celebrating in Jenin over this..passing out candy, the usual garbage
The Crusades, maybe. “Earliest Christians” in this part of the world, nah. Too much upheaval to make any such claim by anyone. Christians of various denominations have been in and out along with different Islamic factions, various waves of Jewish immigrations and exits, Romans, Crusades, Mamluks, Seleucids, Circasians, Mongols, Turks, Britons, etc., etc. Maimonides was here and had to leave, but is buried in Tiberias. Nachmanides was here and is believed to be buried on the 7th Step of the Tomb of the Patriarchs in Hebron, but nobody knows for sure.
If such revered sages can’t even be sure of their final resting places, the earliest Christians whose final whereabouts can be found are in the Catacombs in Rome. As for descendants, those that didn’t get eaten by lions were either ostracized for keeping Mitzvot against the tenets of the new, international Church, or ostracized for refusing to join Bar Kochba’s rebellion, or scattered to the four winds by General Severus on slave ships for taking part in that rebellion.