7 · Bible
73 · New Testament
73A · (scenes from the life of) John the Baptist and Mary
73A5 · the announcement of Christ's birth (Luke 1:26-38)
73A52 · the Annunciation: Mary, usually reading, is visited by the angel (sometimes a woman overhears the conversation)
73A522 · the Annunciation: Mary sitting
73A522(+5) · the Annunciation: Mary sitting (+ donor(s), supplicant(s), whether or not with patron saint(s))