While imprisoned in the Tower, Raleigh wrote his incomplete "The Historie of the World". Using a wide array of sources in six languages, Raleigh was fully abreast of the latest continental scholarship. He wrote not about England, but of the ancient world with a heavy emphasis on geography. Despite his intention of providing current advice to the King of England, King James I complained that it was "too sawcie in censuring Princes". Raleigh remained imprisoned in the Tower until 1616. His son, Carew, was conceived and born (in 1604 or 1605) while Raleigh was imprisoned in the Tower.