R. Isaiah Ben Mall Di Trani (the Elder; c. 1200–before 1260), early Italian halakhist, scion of a well-known rabbinic and scholarly family. Born in Trani, he is mainly known as the author of extensive commentaries and pesakim ("decisions") on the Talmud. Isaiah was a pupil of Simḥah of Speier and kept in contact with German scholars. His responsa are to be found in the Or Zaru'a of R. Isaac b. Moses of Vienna , who greatly esteemed him. He traveled in the Mediterranean countries, spending some time in Greece and in Ereẓ Israel.

R. Yom Tov Ben Abraham Ishbili (Asbili; i.e., of Seville; known as Ritba – from the initial letters of his Hebrew name Rabbi Yom Tov Ben Abraham; c. 1250–1330), Spanish talmudist. Famous already in his youth as a scholar, he studied in Barcelona under R. Aaron ha-Levi of Barcelona and R. Solomon ben Abraham Adret , and was mentioned in an official document of 1280 of the kingdom of Aragon as a ḥakham and dayyan of the community of Saragossa. Even during the lifetime of his teachers, questions were addressed to him for he was regarded as among the leading Spanish rabbis. When the king's bailiff in Saragossa asked his opinion about the protests of the local Jews against the excessive privileges of the wealthy families Alconstantini and Eleazar, he, despite his youth, condemned their domineering behavior and abuses, whereupon they attacked and seriously injured him. After the death of his teachers, he was regarded by Spanish Jewry as its spiritual leader.

R. Joseph ben Meir Ha-Levi Ibn Migash (1077–1141), greatest Spanish talmudic scholar of the third generation of Spanish rabbis. He studied first under R. Isaac b. Baruch Albalia , and at the age of 12 went to Lucena where he studied under Alfasi for 14 years. His teacher encouraged him, ordained him as rabbi and greatly honored him, even nominating him his successor as head of the yeshivah, though his own son was a talmudic scholar. Ibn Migash occupied this post for 38 years, until his death. Very little of Ibn Migash's work is extant. His novellae to Bava Batra and Shevu'ot have been published, but his commentary must have embraced at least half of the Talmud, and even the portion published is not complete in itself. His novellae to Bava Batra are quoted extensively and fully in the works of other rishonim, and are found in superior form in the Shitah Mekubbezet to that tractate, and in R. Aghmati 's work, Sefer ha-Ner. A relatively small number of his responsa (translated from the original Arabic) have been published (Salonika, 1786);

R. Nissim ben Reuben Gerondi (Rabbenu Nissim, Ran c.1310–?1375), one of the most important Spanish talmudists. Rabbenu Nissim's renown rests chiefly on his halakhic works. His method and system were solidly founded in accordance with the tradition of learning acquired from the school of Nahmanides, Solomon b. Abraham Adret, Aaron ha-Levi of Barcelona, and their contemporaries, and though his works contain many sayings of these scholars without naming them, he adapted their words, crystallized them, and added much of his own so that his works are among the best produced by this school of learning.

... כולל חידושי המאורות הגדולים... תוספת רי"ד [ר' ישעיה ב"ר מאלי הזקן דיטראני] על קידושין ועל מסכת תענית, הריטב"א [ר' יום טוב ב"ר אברהם אשבילי] על קידושין, מהר"י [ר' יוסף] אבן מגש על בבא בתרא, חידושי הר"ן [ר' נסים גירונדי] על מסכת נדה, ונתוסף עליהם הגהות [על תוספות רי"ד ועל חידושי הריטב"א] של הרב... ר' אלעזר [ב"ר אריה ליב לעוו] דק"ק טרישט נ"י, ונקראו בשם זר זהב... שנת והיה ביום ההוא ית'ק'ע' בשופר גדול