Gregorio Dati (b. 15 April 1362 was a Florentine

Florence

Florence is the capital city of the Italian region of Tuscany and of the province of Florence. It is the most populous city in Tuscany, with approximately 370,000 inhabitants, expanding to over 1.5 million in the metropolitan area....

 merchant

Merchant

A merchant is a businessperson who trades in commodities that were produced by others, in order to earn a profit.Merchants can be one of two types:# A wholesale merchant operates in the chain between producer and retail merchant...

 and diarist best known for the authorship of The Diaries of Gregorio Dati, which represents a major source for the social

Social history

Social history, often called the new social history, is a branch of History that includes history of ordinary people and their strategies of coping with life. In its "golden age" it was a major growth field in the 1960s and 1970s among scholars, and still is well represented in history departments...

 and economic historians

Economic history

Economic history is the study of economies or economic phenomena in the past. Analysis in economic history is undertaken using a combination of historical methods, statistical methods and by applying economic theory to historical situations and institutions...

 of the Renaissance Florence, alongside the diaries of Buonaccorso Pitti

Buonaccorso Pitti

Buonaccorso Pitti was a prominent Florentine merchant in the 15th century. His family was very prestigious and his father very involved in politics. He was a gambler and often made unsafe investments, though he always seemed to come out all right. He bought and sold horses, wine, wool, and clothing...

. Dati primarily traded in silk

Silk

Silk is a natural protein fiber, some forms of which can be woven into textiles. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity...

, but also in other commodities such as cloth and pearls. Gregorio Dati was one of the seventeen children of Stagio Dati and Monna Fillipa. Fra Leonardo Dati

Leonardo Dati

For other uses of the word Dati, see Dati .Leonardo Dati was an Italian friar and humanist. He was Master general of the Dominican Order from 1414 to his death....

was his brother.