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The Commercial and the Revival of Church Building in The patrimony of the church:accumulation of land and houses over the centuries Mortmain = Ecclesiastical property cannot be sold or alienated

Properties belonging to the abbey of St.-Denis The Commercial Revolution – Robert Lopez, 1971

the High

Population: England in 1086: 1,100,000 c. 1346: 3,700,000

Florence: c. 1300 120,000 by 1427 this declines to 36.909 Siena, 52,000 , 40,000; by 1315 up to 50,000, but by ca. 1350 declines to 8000, in 1427 is 7, 106

Perugia, 28,000; Arezzo, 20,000; Asissi, 1232, 12,397 most Italian cities did not recoup their pre-plague pop until late 19th century New developments in

Changes in diet: legumes in addition to grains – more protein= greater fertility and longevity The heavy plow for heavy northern soils; also: 1. rotation

2. The collar

3. The

4. instead of oxen

5. Land clearance The horse collar, , and rotating axle The Bayeux Tapestry: a Norman warrior riding with stirrups At the same time, the increasing monetization of the medieval economy - in effect the origins of the modern commercial economy in which merchants became immensely wealthy

But wealth was complicated in the medieval church: 1. trade looked down upon 2. lending/borrowing for a sin The importance of Islam in establishing a model of effective long-distance trade

A Roman road in S. (Apulia) – still an essential network in the Middle Ages

Islam believed that the good, honest merchant was a valuable member of society; that trade was essential for well-being

Medieval trade by the High Middle Ages

The annual fair as an essential form of trade and exchange

Krakow, the market square and the cloth hall

Also rivers: The Rhone The Rhine The Vistula The Po

Technology: lifting wheels, waterwheels, windmills

fulling Jacques Le Goff: The Birth of Purgatory double entry bookeeping ------The fate of the soul after Death mediated by the church

Intercessory prayer Commemorative masses

Salvation becomes a commodity Italian City-States and their Cathedrals, starting early 11th century Modena Cathedral Parma Cathedral Parma Cathedral tower

cathedral

baptistery

Pisa: the Cathedral Complex

Florence, the Baptistery and the Cathedral Ferrara: the Loggia of the Mercanti (merchant’s lodge)

Lay patronage Aquileia: the Early Christian Cathedral The pavement of Aquileia Cathedral Donor from Aquileia The new “incentive system” for pious donations: the doctrine of PURGATORY Jacques Le Goff: The Birth of Purgatory

(double entry bookeeping invented by Fibonacci, in Pisa, early 13th century? )

The fate of the soul after death as mediated by the church

Intercessory prayer Commemorative masses

Salvation becomes a commodity