The aim of the dissertation is a comparative analysis of the English royal court in the first half of the 17th century. The analytical part of the dissertation focuses on researching processes that influenced the structure and roles in the royal court in regards to the political, religious, economic, social and cultural development of the world. The benchmarks represent the personality of the ruler, institutional structure and personnel composition of the court, its financing and its culture. The comparison is a defined period of time between the beginning of James I (1603) and the end of the personal rule of Charles I (1640). The dissertation is based on critical analysis of the sources and studies of secondary literature. One of the features of the Royal Court during the rule of James I was the rivalry of various factions. In the interest of retaining a balance in power, the monarch revealed selected offices only to members of his Scottish clubs. Targeted strengthening of the influences of selected institutions of court, especially Bedchamber, ended up contributing to a significant weakening of the unitary system of the government, where the Privy Council played a key role up until then. In addition, between 1603 and 1625, there became a strong concentration of power in the hands of the royal...