The number of angels (eleven) is unusual and has still not been satisfactorily explained. It is in contradiction with the iconography of the heavenly court of the Virgin, because in medieval iconography the number eleven has extremely negative symbolism. Considering the Biblical exegesis and medieval number symbolism, a possible interpretation of the enigmatic number of angels can be found in the Biblical motif of the second dream of young Joseph (Genesis 37:9) in which the number eleven exceptionally has a positive meaning because it implicates the celestial twelve. The sun, the moon and eleven stars that in Joseph's dream are bowing down to him are completed by Joseph himself, who according to medieval exegesis is to be taken for a twelfth star. Having in mind the historical evidence of Richard II's personal regal iconography of the anointed king and the documented Biblical allusions, it seems that the motif of youthful Joseph honoured in his dream by the sun, representing the Christ, the moon, representing the Virgin and eleven stars representing his brothers offers a significant parallel to the vision of the heavenly court with Jesus Christ, the Virgin and eleven angelic courtiers appearing in front of the eyes of King Richard II.