Herimannus names "Counradus dux Carentani, filius Ottonis ducis fraterque Brunonis dudum papæ" when recording his death in 1012. Wipo names "Hezil et Chuono…Brunone et Willihelmo" as sons of "Ottone duce Francorum". Candidate for the Imperial throne 1002.
He was installed as KONRAD I Duke of Carinthia in 1004.
The necrology of Fulda records the death "1011 II Id Dec" of "Cuonradus dux". 1