By considering in the first place Rodrigo of Cerrato's hagiographic compilation, this paper aims to analyze the Commemoratio Anuntiationis and the representation of Ildephonsus of Toledo, the saint to whom the creation of this Marian celebration is ascribed. In connection with the Vitae sanctorum, we will also take into account other compilations, both in Latin and Romance languages, in order to find their sources, their combination and inclusion into the text, as well as the different ways they are handled in each case. This will contribute to verify the continuity of this visgothic Marian feast up to 13th century as well as to show the hesitations regarding its aim. [ABSTRACT FROM AUTHOR]