In the Middle Ages, Vrana was a significant agrarian community governed by Venetian authorities, who decided to compile and affirm local customs in the form of a legal code. This was motivated by the need to regulate relations between the nobility and peasants (serfs), aiming to maintain stability and ensure rights were respected in this town and its environs. Available data on the Vrana Code and life in Vrana during the 15th century reveal many intriguing details about daily life, especially in terms of agriculture and trade. Olive farming was among the most important agricultural activities in the region. Every serf was obligated to plant olives (one hundred trees within four years), or was otherwise imposed taxes. This ensured the continuity of oil production, as oil was a key commodity and important source of income. Vrana also had an olive oil mill. Other fruits besides olives were also grown. The Code mentions “fruit-bearing trees”, whose fruits serfs were allowed to sell or leave as inheritance. Viticulture also played a vital role, and strict penalties were imposed for theft or damage to vineyards and gardens. Wine was sold in barrels and in retail in taverns, with retail sales being specifically regulated by the Code. Wheat, barley and other grains were cultivated for the production of bread, a staple of the diet. Proximity to Vrana Lake provided easy access to fish, and fishing and bird hunting on the lake were strictly regulated by the Code. Special permits from tax officials were required for hunting and fishing. Vrana had slaughterhouses where livestock from surrounding areas was brought for slaughter. Leather obtained from livestock was sold, most likely in Zadar and surrounding areas. There was also organised transport of goods, with a fee charged – one soldo for each cart transported.