Rav Meir of Rothenburg was born in Worms, Germany in 1220. He studied in the French Tosafist schools under Rav Yechiel of Paris and Rav Shmuel of Evreux. He served as Rabbi of Worms and Rothenburg, and wrote many halachic responsa while in those positions. In addition, he wrote commentaries to Zera'im and Taharot, and authored the Tosafot that appear in our editions of tractate Yoma. He wrote several smaller works, and his responsa are frequently cited by Or Zarua and Mordechai. His students included Mordechai and Rosh.