The outcome of the Black Death encouraged a radical reorganization of the economy, and eventually of European society. In the emerging urban centers, however, the calamities of the fourteenth and early fifteenth century, and the resultant labor shortages, provided a strong impetus for economic diversification and technological innovations. Following the Black Death, the initial loss of life due to famine, plague, and pestilence contributed to an intensification of capital accumulation in the urban areas, and thus a stimulus to trade, industry, and burgeoning urban growth in fields as diverse as banking (the Fugger banking family in Augsburg and the Medici family of Florence being the most prominent); textiles, armaments, especially stimulated by the Hundred Years' War, and mining of iron ore due, in large part, to the booming armaments industry. Accumulation of surplus, competitive overproduction, and heightened competition to maximize economic advantage, contributed to civil war, aggressive militarism, and thus to centralization. As a direct result of the move toward centralization, leaders like Louis XI of France (1461–1483), the "spider king", sought to remove all constitutional restrictions on the exercise of their authority. In England, France, and Spain the move toward centralization begun in the thirteenth century was carried to a successful conclusion.