{"lc_classifications": ["DD395.D47 H47 1997"], "key": "/works/OL2848058W", "title": "Georg Freiherr von Derfflinger", "covers": [2250626], "subject_places": ["Germany", "Prussia (Germany)", "Prussia"], "first_publish_date": "1997", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL428051A"}}], "subject_people": ["Georg Derfflinger Freiherr von (1606-1695)"], "dewey_number": ["355/.092", "B"], "subjects": ["Campaigns", "Thirty Years' War, 1618-1648", "Marshals", "Biography", "History", "Generals"], "type": {"key": "/type/work"}, "subject_times": ["Frederick William, the Great Elector, 1640-1688"], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T00:40:24.946672"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-10T05:12:30.513562"}}