{"death_date": "ca 1210", "date": "fl. 1200", "alternate_names": ["Map, Walter, ca. 1140.", "Walter Fl 1200 Map", "Walter Mapes", "Gautier Map"], "personal_name": "Walter Map", "bio": {"type": "/type/text", "value": "Welsh medieval writer"}, "type": {"key": "/type/author"}, "source_records": ["bwb:9781021567840", "bwb:9798793856744"], "birth_date": "ca 1140", "name": "Walter Map", "key": "/authors/OL114384A", "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2008-04-01T03:28:50.625462"}, "last_modified": {"type": "/type/datetime", "value": "2026-04-15T23:27:33.977087"}}