Pretty medieval manuscript of the day is the Neville of Hornby Hours, a fourteenth century manuscript produced in England. This page is dominated by a giant illuminated letter D, illustrated with the visitation.
Detail of a miniature of St Nicholas with the three boys in the tub.
And because this would just be weird without some context:
Nicholas performed a miracle to save the life of three boys. The children had been murdered by a wicked butcher, who concealed their bodies by cutting them up and throwing the remains into a tub he used for curing meat. Nicholas not only found them there, he was able to restore the dismembered boys to life, and the image of the bishop standing over the three now-healed children standing up from the tub is a popular subject for illustration. - BL
France (Paris), 1382, Royal MS 19 B. xvii, f. 14r. - (via)
Pretty medieval manuscript of the day is another depiction of the annunciation, this time with a rather unusual border of sea shells. My first thought was that these linked it to the seashell pilgrim badge of Santiago de Compostela, but the British Library’s catalogue record says that it’s actually drawn from the shells on the heraldic arms of the book’s patron and owner, Philippe de Commynes (1447-1511). His coat of arms appears at the bottom of the page.