I want to know the answer to the following question:
Who was the 13th-century Spanish rabbi and recognised leader of Jewry?
All the background I'm provided with is that "In 1211, the Jewish community in the country was strengthened by the arrival of a group headed by over 300 rabbis from France and England, among them Rabbi Samson ben Abraham of Sens.". Is that enough to answer the question?
Answer: no