Luca Pacioli, an Italian mathematician and Franciscan friar, is widely regarded as the father of modern accounting. He introduced the concept of double-entry bookkeeping in his book Summa de Arithmetica, Geometria, Proportioni et Proportionalita, published in 1494.

Agriculture was the primary economic activity in medieval Europe. The majority of the population was engaged in farming, and the economy was largely based on the production and distribution of agricultural products.

Gottfried von Strassburg, a German merchant and politician, is credited with establishing the Hanseatic League, a powerful trading alliance of merchant guilds and cities in northern Europe.

Medieval trade fairs were primarily held to facilitate business transactions. Merchants from different regions would gather at these fairs to buy and sell goods, exchange information, and establish trade agreements.

Edward III, King of England, played a significant role in developing the wool trade in England. He encouraged the production and export of wool, which became a major source of revenue for the English economy.

Silver coins were the primary form of currency used in medieval Europe. Gold coins were also used, but they were less common.

Jean-Baptiste Colbert, the French finance minister under King Louis XIV, is associated with the development of mercantilism, an economic policy that aimed to increase a nation's wealth and power through trade and manufacturing.

Medieval guilds were primarily formed to regulate trade and commerce within a particular industry or craft. They established standards for quality, prices, and working conditions.

Ibn Khaldun, a Muslim historian and economist, is known for his work on economic theory and monetary policy. His writings on the rise and fall of civilizations and the importance of economic factors in history have influenced modern economic thought.

Horses and carts were the primary means of transportation for goods in medieval Europe. Ships were used for long-distance trade, but roads were often poorly maintained, making land transportation more difficult.

Cosimo de' Medici, the founder of the Medici family in Florence, Italy, is credited with developing the banking system in Europe. He established a network of banks and financial institutions that facilitated trade and commerce.

Medieval market towns were primarily established to facilitate trade and commerce. They provided a central location for merchants and traders to buy and sell goods, exchange information, and conduct business transactions.

Thomas Aquinas, a Dominican friar and philosopher, is known for his work on the concept of just price, which argued that the price of a good or service should be fair and reasonable, taking into account the costs of production and the needs of both buyers and sellers.

The primary economic role of the medieval church was to provide spiritual guidance and moral instruction to the faithful. The church also played a role in education, healthcare, and charity, but its main focus was on religious matters.

Marco Polo, a Venetian merchant and explorer, is known for his travels to Asia and his role in developing the silk trade between Europe and Asia. His book, The Travels of Marco Polo, provided Europeans with valuable information about the East and helped to stimulate trade.