Rudolf of Rheinfelden
Rudolf of Rheinfelden (c. 1025 – 15 October 1080) was Duke of Swabia from 1057 to 1079. Initially a follower of his brother-in-law, the Salian emperor Henry IV, his election as German anti-king in 1077 marked the outbreak of the Great Saxon Revolt and the first phase of open conflict in the Investiture Controversy between Emperor and Papacy. After a series of armed conflicts, Rudolf succumbed to his injuries after his forces defeated Henry's in the Battle on the Elster.
Rudolf of Rheinfelden
c. 1025
15 October 1080
Kuno of Rheinfelden
With his second wife, Adelaide, Rudolf had at least four (and perhaps five) children: