Yosef Dayan was born in 1945 in Mexico to Sephardic Jewish parents from Aleppo, Syria. The Dayan family traces its lineage directly to the Exilarchs of the ancient Near East.
Dayan made aliyah (emigrated to Israel) in 1968 and joined Rabbi Meir Kahane's Kach movement. He was instrumental in establishing the Hebron Hills settlement of El-Nakam, which was destroyed on the orders of the then-Minister of Defense, Moshe Arens in 1982.
He is the founder and current director of Malchut Israel, an organization with the goal of restoring Israel's royal Davidic house, and is known as the Rabbi who enacted the Pulsa diNura against the Prime Ministers of Israel Yitzhak Rabin and Ariel Sharon.
Dayan is also the author of several books in Hebrew, Spanish and Italian. He also worked to translate modern Spanish literature into Hebrew. He is married with 6 children and currently resides in Psagot, Israel.
His son, Sgt. Hananel Dayan, refused to shake Chief of General Staff Lt.-Gen. Dan Halutz's hand during the 2006 Independence Day ceremonies while Hananel Dayan was being given the President of Israel award for outstanding soldiers.
The Dayan Family, whose eponymous ancestor was Yosef Dayan of Aleppo, Syria, who became the royal heir of a dynasty of the Jewish Palestinian Nesi'im, its collateral-line, the Nasi Family, upon its extinction, which were both representative of the House of Bostanai, the "3rd" dynasty of Babylonian Exilarchs.
The office of the Palestinian Principate was in abeyance during the period of the Crusader Kingdom of Jerusalem, 1099-1187 & 1229-1244, but by the 1300s many other families of royal Davidic descent began supplying royal scions to be the rulers of the various Jewish settlements in Palestine, especially at Jerusalem, where its last dynasty of Jewish "Nesi'im" established itself circa 1187, which is essentially of Israel’s "dispossessed" royal house, and its head or spokesman is "Prince of Israel", the royal Davidic heir, the unofficial and/or "uncrowned" "King of the Jews". There is reference to the existence of the Palestinian Principate as late as the 1800s.
The Jewish "Prince" Yeshai, who was a medieval Davidic Dynasty prince of the exilarch's house, the grandson of the 34th Exilarch Azariah, emigrated along with his father, "Prince" Solomon, to Israel/Palestine and founded another dynasty of the Israeli/Palestinian "nesi'im", c. 1187, and, became the ancestor of the Ha-Nasi Family, which family reigned until its deposition by the Turkish sultan in 1678, whereupon, the dynasty's heir took up residence in Aleppo, Syria. The Nassi Family, which became extinct in the male-line, upon which its surviving off-shoot, the Dayan Family, inherited its legacy.
Yitzak Dayyan was considered heir in 1933 by Jewish rabbis as the Davidic Dynasty's heir and titular "King of Israel"; but after his death none of his three sons pursued their father's dynastic claims. Then, in 1968, another family member, Yosef Dayan, was encouraged by Jewish rabbis to be an active claimant to the throne
The Dayan Family appears to have the best claim to Israel's throne, for Dr. Nahum Sloushz in his article "Where are the True Descendants of King David?", in "The Jewish Morning Journal", dated September 1, 1933, says that Rabbi Isaac (Yitzhak) Dayan was considered the head of King David's House in his time due primarily to his strong personality, rather than according to his place in the line of succession. Too, in 1617 the old great Rabbi Kehahr [Kevod HaRav HaGaon] recorded in an unpublished manuscript the ancestral-line of his contemporary Nathan Ha-Dayan [son of Mordechai Ha-Dayan and father of Yosef Dayan, the royal heir] in which he heaps praise upon him reminiscence of the praise heaped upon the post-exilic royal heir Zerubabel by the prophets Haggai and Zechariah, which suggests appointment of him, his family, and descendants, as the heirs of the Davidic Dynasty and/or the ancient Jewish kings.
- David Hughes, Davidic Dynasty