When Siegfried died, his march was disputed between Thankmar, his cousin (through their mothers) and the king's brother, and Gero, his own brother and the king's appointee.
In 929, Henry I arranged for his succession and had the arrangement ratified by an assembly at Erfurt, just before his death.
Thankmar |
Thangmar (Thankmar) (b. about the middle of the tenth century; d. probably at Hildesheim after 1022) was a German chronicler.