The king no longer lives on his own from income from his own lands, but takes money from the treasury. A tax of a percentage of 1/15 the of personal property was levied in 1225 for a war, in return for which the king signed the Magna Carta. It was to be paid by all tenants-in-chief, men of the royal domain, burgesses of the boroughs and cities, clerical tenants-in-chief, and religious houses. The percentage tax came to be used frequently and ranged from about 1/40 th to 1/5 th. In 1294, this tax was bifurcated into one percentage amount for the rural districts and a higher one for urban districts, because the burgesses had greater wealth and much of it was hard to uncover because it was in the possession of customers and debtors. It was usually 1/10 th for towns and royal domains and 1/15 th in the country. This amount of money collected by this tax increased with the wealth of the country. The king takes custody of lands of lunatics and idiots, as well as escheats of land falling by descent to aliens. Henry III took 20s. from his tenants-in-chief for the marriage of his daughter, and two pounds for the knighting of his son. By 1250, the king was hiring soldiers at 2s. per day for knights, and 9d. a day for less heavily armed soldiers, and 6d. a day for crossbowmen. Some castle-guard was done by watchmen hired at 2d. a day. Ships were impressed when needed. Sometimes private ships were authorized to ravage the French coasts and take what spoil they could.