Before Henry's reign, the church had become more powerful and asserted more authority. Henry tried to return to the concept of the King being appointed by God and as he head of the church as well as of the state, as in Henry I's time. Toward this end, he published the Constitutions of Clarendon. But the Archbishop of Canterbury, Thomas Becket, refused to agree to them. The disageement came to a head in Henry's attempt to establish the principle of "one law to all" by having church clerics punished by the civil courts as before, instead of having "benefit of clergy" to be tried only in ecclesiastical courts, even for secular crimes. Clerics composed about one-sixth the population. The church courts had characteristically punished with a fine or a penance, and at most defrocking, and never imposed a death penalty, even for murder. When Archbishop Becket was murdered and became a martyr, "benefit of clergy" became a standard right. Appeals could be made to the Pope without the King's permission. The King could take a criminal cleric's chattels, but not his life. However, though theoretically the bishops were elective, as a practical matter, the King appointed the bishops and the abbots. Henry and Eleanor spoke many languages and liked discussing law, philosophy, and history. So they gathered wise and learned man about them, who became known as courtiers, rather than people of social rank. They lived in the great and strong Tower of London, which had been extended as had other castles, so that the whole castle and grounds were defended instead of just the main building. On the west were two strongly fortified castles surrounded by a high and deeply entrenched wall, which had seven double gates. Towers were spaced along the north wall and the Thames River flowed below the south wall. To the west was the city, where royal friends had residences with adjoining gardens near the royal palace at Westminster. The court was a center of culture as well as of government. The game of backgammon was played. People wore belts with buckles, usually brass, instead of knotting their belts.