שמחה משפיירא

Simḥa ben Samuel of Speyer was a German rabbi and tosafist. Neither the year of his birth nor that of his death is known. He was one of the leading signatories of the Takkanot Shum. He was a nephew of the director (parnas) Kalonymus, a student of R. Eliezer of Metz, and a colleague of Eliezer ben Joel ha-Levi.