Background
He was the son of Hermann II, Landgrave of Hesse and Margaret, the daughter of Frederick V of Nuremberg.
archbishop Landgrave of Lower Hesse
He was the son of Hermann II, Landgrave of Hesse and Margaret, the daughter of Frederick V of Nuremberg.
Their children were:
Louis II (7 September 1438 - 8 November 1471)
Henry III (15 October 1440 - 13 January 1483)
Hermann IV, Archbishop of Cologne (1450 - 19 October 1508)
Elisabeth (1453 - 22 April 1489), married John III of Nassau-Weilburg
Friedrich (1458-1451 June 1463)
After 1425 a conflict with the Electorate of Mainz over claims to power in Hesse broke out into open conflict and Archbishop Conrad III of Mainz suffered a decisive defeat at Fulda in 1427.