Complex sentence: During the Renaissance, prosperity returned to Lothringia under Habsburg administration, until the Thirty Years' War 1766 until 1871 Lorraine remained a part of France, and was the cause of much revanchism.
Split into simpler sentences: During the Renaissance, prosperity returned to Lothringia under Habsburg administration, until the Thirty Years' War. From 1766 Lorraine became a part of France, and was the cause of much revanchism.