The Most Powerful Jew in Medieval Spain That Nobody Remembers

Welcome to The Birth of Sephardic and Ashkenazic Jewry, Lesson II: The Golden Age of Sepharad

How did a Jewish physician-diplomat become one of the most powerful men in Muslim Spain — negotiating with kings and writing to a Jewish monarch in Russia — and yet almost no one remembers his name today, while a rabbi with no political power at all became a household name in every yeshiva?

In this class, Rabbi Heschel Greenberg continues the history of Sephardic Jewry, tracing the “Golden Age” (La Convivencia) of Spain from the Muslim conquest of 711 through the rise of a series of extraordinary Jewish figures: a physician who became a diplomat and turned Cordoba into a center of Torah, a rabbi who led armies into battle, a philosopher whose work was secretly adopted by the Catholic Church, and the sage whose abridgment of the Talmud made him more famous in Jewish law than any of them.

Along the way, we see what the “Golden Age” really meant for Jews living under Muslim rule — real opportunity, real tolerance, but never full safety — and how, even at the height of worldly success, Sephardic Jewry never let go of the longing for Israel.

🔎 In this video we explore:

• How the Pact of Umar shaped Jewish life under Muslim rule — and why the “Golden Age” wasn’t as idyllic as the name suggests
• Chasdai ibn Shaprut: the physician-diplomat who became the closest Jewish advisor to the Caliph of Cordoba
• The real story behind Chasdai’s letter to the Jewish king of the Khazars, and what it reveals about Jewish identity at the height of power
• Shmuel HaNagid: the only rabbi in history known to have also served as a battlefield general
• Shlomo ibn Gabirol, the philosopher whose book was adopted by the Catholic Church for centuries without anyone knowing a Jew wrote it
• Rabbeinu Bachya ibn Paquda’s Chovot HaLevavot (Duties of the Heart) and its timeless prescription for anxiety: trust in God
• Why the Rif — a man with no political power, no poetry, no diplomacy to his name — became the single most recognized authority in Jewish law

⏱️ TIMESTAMPS

📚 Sources discussed: Pact of Umar, Chasdai ibn Shaprut, Rabbi Moshe ben Chanoch, Menachem ben Saruk, Dunash ben Labrat, Rashi, Rabbeinu Tam, Shmuel HaNagid, Yosef HaNagid, Shlomo ibn Gabirol (Fons Vitae / Keter Malchut), Rabbeinu Bachya ibn Paquda (Chovot HaLevavot), Rabbi Yitzchak Alfasi (the Rif), Maimonides (Rambam), Rabbi Yosef Karo (Beit Yosef / Shulchan Aruch), Rabbi Yehuda HaLevi (Kuzari)

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