As chief minister Lerma's ideas of foreign policy were firmly grounded in feudal ideas about royal patrimony. He cemented Spanish rule by many marriage alliances with the Austrian Habsburgs and then with the French Bourbons. Lerma's administration began with a treaty with France, the Treaty of Vervins in 1598, declaring peace, but he persisted in costly and useless hostilities with England till 1604, when Spain was forced by exhaustion to make peace. Lerma used all his influence against a recognition of the independence of the Low Countries.