Ludwig I was Count of Württemberg from 1419 and then count of Württemberg-Urach until his death in 1450. Wikipedia
Born: October 31, 1412
Died: September 23, 1450 (age 37 years), Bad Urach, Germany
Great grandchildren: Ottilia von Karpfen and Johann Bidenbach
Great-grandparents: Bernabò Visconti, Beatrice Regina della Scala, Stephen of Montfaucon, and more
Grandfathers: Eberhard III, Count of Württemberg and Henry II of Montfaucon
Grandchildren: Ludwig von Greifenstein, Margarete Wirtemberger, and Hans (Johannes) (Wirtemberger) von Karpfen