I've seen הר"ם quoted in Tosafos in a few places. One example is Kiddushin 50a, Tosfos ד"ה היה לו. I always assumed it was Rabbeinu Meir, the son in law of Rashi, whose sons are the famous trio of Rabbeinu Tam, Rashba"m and Riva"m (M in the last two standing for Meir).

Recently someone told me that it's not crazy for Tosafos to quote the Rambam, and showed me an example in Zevachim.

Now, I saw in Kiddushin 47a that the Tosafos Ri HaZaken quoted הר"ם and is clearly referring to Rambam. Is this the same for regular Tosafos?

Related question is I saw Tosafos in Kiddushin 75a ד"ה כותי quote הר"מ, not using a final Mem. Is this the same person?

  • It is important to remember who authored which Tosafot. The Rosh for example, frequently quotes Rambam. The first two or three generations of Tosafot rarely do. || In short, besides for ר"ת, don't assume that because one Tosafot refers to someone as ר"מ that a random different Tosafot does. || Don't forget R. Moses of Coucy, aka the Semag, a student of a student of Ri.
    – mevaqesh
    Commented Nov 21, 2016 at 4:31
  • הרב משה מקוצי בעל ספר מצוות גדול
    – kouty
    Commented Nov 21, 2016 at 4:40
  • הוא כתב גם תוספות
    – kouty
    Commented Nov 21, 2016 at 4:40
  • רוב התוספות הם תוספות טוק, אבל תוספות רבי ו פרץ היה תלמיד מהר"ם מרוטנבורג
    – kouty
    Commented Nov 21, 2016 at 4:41
  • "Tosafot Ri HaZaken" is actually R. Avraham min HaHar, who frequently quotes Rambam. The actual Ri HaZaken, better know as the Ri, or R. Isaac ben Meir of Dampierre, would not be quoting Rambam. || I wouldn't make too much of a closed vs. open מ as this could simply be the results of the printers.
    – mevaqesh
    Commented Nov 21, 2016 at 4:57

1 Answer 1


Many ascribe הר"ם to Rav Moshe Évreux in mashcehes Kiddushin since many ascribe the Tosfos of kiddushin to the scholars of Évreux.

On a side note:

Tosfos in Menachos 42b writes the Rambam like this :תפילין יש להן בדיקה. פי' בקונט' בחסירות ויתרות ואפי' הכי אין נקחין אלא מן המומחה [ל] לעבדן לשמן אבל ספרים ומזוזות לא בעי עיבוד לשמן וכן פי' ה"ר משה בר מיימון דמזוזה לא בעיא לשמה

  • 3
    Could you provide an example of the 'many' you refer to?
    – robev
    Commented Nov 27, 2016 at 0:24

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