The monarch ruled personally, and the permanent institutions of government were constantly being reshaped. Around the king was the court, a floating body of royal servants, officeholders, and place seekers. Personal service to the king was considered a social honour and thus fitting to those who already enjoyed rank and privilege. (For more on courtiers, see Baldassare Castiglione.) Most of the aristocracy and many gentlemen were in constant attendance at court, some with lucrative offices to defray their expenses, others extravagantly running through their fortunes. There was no essential preparation for royal service, no necessary skills or experiences. Commonly, members of the elite were educated at universities and the law courts, and most made a grand tour of Europe where they studied languages and culture. But their entry into royal service was normally through the patronage of family members and connections rather than through ability.

From among his court the monarch chose a privy council. Its size and composition remained fluid, but it was largely composed of the chief officers of state: the lord treasurer, who oversaw revenue; the lord chancellor, who was the crown's chief legal officer; and the lord chamberlain, who was in charge of the king's household. The archbishop of Canterbury was the leading churchman of the realm, and he advised the king, who was the head of the established church. The privy council advised the king on foreign and domestic policy and was charged with the administration of government. It communicated with the host of unpaid local officials who governed in the communities, ordering the justices to enforce statutes or the deputy lieutenants to raise forces. In these tasks the privy councillors relied not only upon the king's warrant but upon their own local power and prestige as well. Thus, while the king was free to choose his own councillors, he was constrained to pick those who were capable of commanding respect. The advice that he received at the council table was from men who kept one eye on their localities and the other on the needs of central policy.

This interconnection between the centre and the localities was also seen in the composition of Parliament. Parliament was another of the king's councils, though its role in government was less well defined than the privy council's and its summoning was intermittent. In the early 17th century Parliament was less an institution than an event; it was convened when the king sought the aid of his subjects in the process of creating new laws or to provide extraordinary revenue. Like everything else in English society, Parliament was constituted in a hierarchy, composed of king, lords, and commons. Every peer of the realm was personally summoned to sit in the House of Lords, which was dominated by the greatest of the king's officers. The lower house was composed of representatives selected from the counties and boroughs of the nation. The House of Commons was growing as local communities petitioned for the right to be represented in Parliament and local gentry scrambled for the prestige of being chosen. It had 464 members in 1604 and 507 forty years later. Selection to the House of Commons was a mark of distinction, and many communities rotated the honour among their most important citizens and neighbours. Although there were elaborate regulations governing who could choose and who could be chosen, in fact very few members of the House of Commons were selected competitively. Contests for places were uncommon, and elections in which individual votes were cast were extremely rare.

Members of Parliament served the dual function of representing the views of the localities to the king and of representing the views of the king to the localities. Most were members of royal government, either at court or in their local communities, and nearly all had responsibility for enforcing the laws that were created at Westminster. Most parliaments were summoned to provide revenue in times of emergency, usually for defense, and most members were willing to provide it within appropriate limits. They came to Parliament to do the king's business, the business of their communities, and their own personal business in London. Such conflicting obligations were not always easily resolved, but Parliament was not perceived as an institution in opposition to the king any more than the stomach was seen as opposing the head of the body. Upsets there were, and increasingly during the 17th century king and Parliament clashed over specific issues, but until the middle of the century they were part of one system of royal government.