I Adalbert 
I was born about 0807. I's father was Count of Istria Hunfrid. He was an only child. He died in 0856.
He had a biological son named Adalbert II "The.
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Children
Adalbert II "The Illustrious
Adalbert II "The was born in 0837 in Sulichgau, Germany. He died at the age of 68 in 0905.
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