Duke Dagobert of East Franks
Duke Dagobert was born about 0230 in Germany.  He died in 0317.

 Duchess ? of East Franks
Duchess ? was born in 0232 in Germany.  Duchess ? is no longer alive.

 Duke Genebald of East Franks
Duke Genebald was born in 0262 in Germany.  He died at the age of 96 in 0358.