"A very singular character was Trotula, a noblewoman from the Norman family of De Ruggiero from Salerno, active and famous around 1050...she was the founder of the modern Obstetrics and Gynecology, and wrote the book “De mulierium passionibus ante, in et post partum” (The sufferings of women before, during and after delivery). Among other indications, she wrote “it is necessary to stitch perineal lesions due to delivery”, a very modern thought."

Sorry, I don't know any source in English (or Spanish). I remember reading about this on the Italian edition of the National Geographic and from some other reputable sources, but I can't pinpoint them precisely.