For the first time I seen in Tosfot Yevamot 57b הרב רבי יום טוב מיוני
I didn't find in Wikipedia about him.
Does someone know who is this Chacham, what is his place in Tosfot constellation?
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Sign up to join this communityIt is likely a transliteration issue. He must be R Yom Tov of Joigny.
Artscroll Tosfot describes him as the author of piyutim [Omnam Kein of the Yom Kippur evening service is one of his compositions], and disciple of Rabbeinu Tam.
His Wikipedia entry is here.