Louis IV of Thuringia
…of St. George in Eisenach. At Wartburg Castle in 1220 at age twenty, Louis married 14-year-old Elizabeth of Hungary, with whom he had three children: Hermann II, Sophie, and Gertrude, later abbess at Altenberg. He set up his court at Wartburg Castle near Eisenach. When in 1221 Louis' Wettin brother-in-law…