Task: Question Generation
Input (English): On the other hand, many of the medieval buildings once situated within the town walls are now in ruins or have disappeared altogether. From successive incarnations of the motte and bailey castle, only a section of the bailey wall remains today, lying just off Castle Way. The last remains of the Franciscan friary in Southampton, founded circa 1233 and dissolved in 1538, were swept away in the 1940s. The site is now occupied by Friary House.
Output (English): In what decade were the leftovers of the Southampton friary destroyed?