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It is not known for certain who authored the Haggadah.
The Haggadah contains the service for the seder.
Moses is never directly mentioned in the Haggadah.
Eugen Verber has written:
'The Sarajevo Haggadah' -- subject(s): Haggadah, Illustrations, Jewish Illumination of books and manuscripts, Sarajevo Haggadah
haggadah