Wikidata Global
Johan Georg I (1585-1656), elector of Saxony, married to 1. Sibylla Elisabet of Würtemberg, 2. Magdalena Sibylla of Brandenburg-Prussia With his second spouse: Magdalena Sibylla (1586-1659), princess
http://www.wikidata.org/.well-known/genid/48ebf1ebf9be2568fed220f4580e327e