This book had the misfortune to be published in Germany the same month World War I broke out. Bummer for Fritz Kern. Despite the unfortunate timing of its initial publishing, this is still an indispensable source for information about the legal theory underlying Kingship in the EARLY middle ages, and is a must read for anyone seeking a broad perspective on the origins or western/constitutional style government. The harper torchbook edition is both functional and stylish- they don't make paperbacks like this anymore!
Exceptionally incisive and informative, but very dense and a hard slog of a read. Some passages required significant focus to parse out what was really meant. The first half on the law surrounding kings was interesting, but where this book really shines is the second half on the development of constitutionalism, public law, and rights.