A rather rare, late-15th-century, variant depiction of the "hortus conclusus" in religious art combined the Annunciation to Mary with the themes of the "Hunt of the Unicorn" and "Virgin and Unicorn", so popular in secular art. The unicorn already functioned as a symbol of the Incarnation and whether this meaning is intended in many "prima facie" secular depictions can be a difficult matter of scholarly interpretation. There is no such ambiguity in the scenes where the archangel Gabriel is shown blowing a horn, as hounds chase the unicorn into the Virgin's arms, and a little Christ Child descends on rays of light from God the Father. The Council of Trent finally banned this somewhat over-elaborated, if charming, depiction, partly on the grounds of realism, as no one now believed the unicorn to be a real animal.