The Magician's Dastardly Deed

Once upon a time in England there was a magician/baron who, whilst practicing his necromancy, learned that his son was fated to marry the daughter of a pauper down in the village. This daughter had just been born so the magician/baron swept down into the village and bought her from her poor father. (He apparently had many other children and could not even venture to think what he could possibly do with another.) The magician/baron, horrified that his near son would one day ally himself so low, proceeded to toss the newborn girl into a nearby river. The girl, however, being already lovely and virtuous, floated along the river to the house of a kindly fisherman who proceeded to raise her as his own.