# Judah ben Yom Tov

Rabbi Judah ben Yom Tov (Hebrew: יהודה בן יום טוב) was one of the Baalei Tosafot in France, a member of Rashi's family.

## Family

His father was Rabbi Yom Tov of Falaise, who was the son of Judah ben Nathan (known as Rivan), Rashi's son-in-law. His brother was Rabbi Yosef. He married the widow of Isaac ben Meir (known as (Rivam), the brother of Rashbam and Rabbeinu Tam, who was a cousin of his father, Rabbi Yom Tov.
His sons were Rabbi Yitzchak and Rabbi Eliezer. His daughter married Isaac ben Samuel of Dampierre. His grandson was Rabbi Judah ben Isaac Messer Leon.
In a manuscript it says that Rabbi Eliezer, son of Rabbi Judah son of Rabbi Yom Tov, married Beila, daughter of Rabbi Joseph, brother of Rabbi Judah.
In "Ohr Zarua" by Isaac ben Moses of Vienna, cites a responsa of Rashbam where he discussed Halakha before the elders of Paris, among them Rabbi Yehuda Bar Tov. This implies that Rabbi Judah lived in Paris.

## Mentions

He is cited in Tosafot in many places. He is also mentioned in the Tosafot of Samson ben Abraham of Sens (Tosafot Shantz) and Ohr Zarua.

## Rashi's family tree

vteRashi family tree :
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Isaac Hatzarfati | Isaac Hatzarfati | Isaac Hatzarfati | Isaac Hatzarfati | Isaac Hatzarfati | Isaac Hatzarfati | | |
| | | | | | | | | Samuel | Samuel | Samuel | Samuel | Samuel | Samuel | | | | | | | | | | | | | | | | | | | | | Rashi | Rashi | Rashi | Rashi | Rashi | Rashi | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | Meir | Meir | Meir | Meir | Meir | Meir | | | Jochebed | Jochebed | Jochebed | Jochebed | Jochebed | Jochebed | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rachel | Rachel | Rachel | Rachel | Rachel | Rachel | | | Eliezer | Eliezer | Eliezer | Eliezer | Eliezer | Eliezer | Miriam | Miriam | Miriam | Miriam | Miriam | Miriam | | | Judah ben Nathan | Judah ben Nathan | Judah ben Nathan | Judah ben Nathan | Judah ben Nathan | Judah ben Nathan |
| Samuel ben Meir | Samuel ben Meir | Samuel ben Meir | Samuel ben Meir | Samuel ben Meir | Samuel ben Meir | | | Rabbeinu Tam | Rabbeinu Tam | Rabbeinu Tam | Rabbeinu Tam | Rabbeinu Tam | Rabbeinu Tam | | | Miriam | Miriam | Miriam | Miriam | Miriam | Miriam | | | Samson ben Yosef | Samson ben Yosef | Samson ben Yosef | Samson ben Yosef | Samson ben Yosef | Samson ben Yosef | | | Rivam | Rivam | Rivam | Rivam | Rivam | Rivam | | | Solomon ben Meir | Solomon ben Meir | Solomon ben Meir | Solomon ben Meir | Solomon ben Meir | Solomon ben Meir | Miriam | Miriam | Miriam | Miriam | Miriam | Miriam | | | Samuel of Vitry | Samuel of Vitry | Samuel of Vitry | Samuel of Vitry | Samuel of Vitry | Samuel of Vitry | | | Yom Tov | Yom Tov | Yom Tov | Yom Tov | Yom Tov | Yom Tov | | | Eliezer? | Eliezer? | Eliezer? | Eliezer? | Eliezer? | Eliezer? | | |
| Isaac | Isaac | Isaac | Isaac | Isaac | Isaac | Joseph | Joseph | Joseph | Joseph | Joseph | Joseph | | | Solomon | Solomon | Solomon | Solomon | Solomon | Solomon | | | Abraham of Sens | Abraham of Sens | Abraham of Sens | Abraham of Sens | Abraham of Sens | Abraham of Sens | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Judah ben Yom Tov | Judah ben Yom Tov | Judah ben Yom Tov | Judah ben Yom Tov | Judah ben Yom Tov | Judah ben Yom Tov | | | Joseph | Joseph | Joseph | Joseph | Joseph | Joseph | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Isaac ben Samuel | Isaac ben Samuel | Isaac ben Samuel | Isaac ben Samuel | Isaac ben Samuel | Isaac ben Samuel | | | | | | |
| | | | | | | | | | | | | | | | | | | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | | | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Isaac | Isaac | Isaac | Isaac | Isaac | Isaac | | |
| | | | | | | | | | | | | | | | | | | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | Isaac of Dampierre | | | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | Samson ben Abraham | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Isaac | Isaac | Isaac | Isaac | Isaac | Isaac | | | | | | | | | | | | | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | | | | | | | | | | | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | Rabbeinu Elhanan | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | Rabbi Jacob | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | Judah ben Isaac Messer Leon | | | | | | | | | | | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | Samuel of Acre | Samuel of Acre | Samuel of Acre | Samuel of Acre | Samuel of Acre | Samuel of Acre | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan | Samuel ben Elhanan |
Notes:
Rashi's daughters :