German critic and author, born at Hanover, brother of preceding, joined his brother at Jena, and collaborated with him; became a zealous promoter of all the Romantic movements, and sought relief for his yearnings in the bosom of the Catholic Church; wrote lectures, severally published, on the "Philosophy of History," of "Literature," of "Life," and on "Modern History," and book on Sanskrit and the philosophy of India (1772-1829).