Albucasis mentions a case of fifteen well-formed children at a birth.

According to Le Brun, Gilles de Trazegines, who accompanied Saint Louis to Palestine, and who was made Constable of France, was one of thirteen infants at a simultaneous accouchement.

The Marquise, his mother, was impregnated by her husband before his departure, and during his absence had 13 living children.
She was suspected by the native people and thought to be an adulteress, and some of the children were supposed to be the result of superfetation.

They condemned them all to be drowned, but the Marquis appeared upon the scene about this time and, moved by compassion, acknowledged all 13.

They grew up and thrived, and took the name of Trazegines, meaning, in the old language, 13 drowned, although many commentaries say that "gines" was supposed to mean in the twelfth century "nes," or, in full, the interpretation would be "13 born." Cases in which there is a repetition of multiple births are quite numerous, and sometimes so often repeated as to produce a family the size of which is almost incredible.