"At the northern Frankish Abbey of St. Riquier, from which grew the town of Abbeville, along the Somme River, there extended around the monastery in 831, as recorded in the Chronicles of Hariulf, 2,500 houses divided into specific quarters for the various craftsmen, including cobblers, carpenters, tanners, fullers, goldsmiths, and masons. Monasteries, such as St. Riquier, also held weekly or yearly markets. The abbot's jurisdiction covered additional dwellings, chapels, workshops, and taverns, as well as a district for the militiamen hired to protect the monastery town. . . . ''