Siegebert von Saarbrücken was born about 1040 and died about 1105.
In 1080, Emperor Heinrich IV of the Salic Dynasty gave Siegebert I the imperial farmhouse Vadgasen and received the management of the properties of the Metz Monastery of Saar with the Castle of Saarbrücken and the Rhine and elastasus. [1]
Sources
↑ Wikipedia:BG:Зигеберт_I_(Саарбрюкен).
J.A. Stargardt Verlag, Marburg, Schwennicke. Europäische Stammtafeln, Detlev (Ed.), VI 152 cited by Genealogics.
Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Hosted online by the Foundation for Medieval Genealogy (FMG), accessed 2021. [1]