Herimannus refers to "sororis suæ [=Peterum regem]" as wife of "marchionem nostrum Adalbertum" when recording her marriage in 1041. She is named in three imperial charters, although these are not consistent about the spelling of her name. "Heinricus…Romanorum imperator augustus" granted property "in circuitu duorum fluminum…Zaiouua" to "marchioni Adalberto et coniugi suæ (Froiza)" by charter dated 21 Apr 1048. "Heinricus…Romanorum imperator augustus" granted property to "Adelberti marchionis [et] uxorique sue Froize" dated 12 Nov 1051". "Heinricus…rex" granted property "in locis Ortvvinesdorf et Pirchehe…in marcha Osterriche et in comitatu Ernestes marchionis" to "Frovvilæ Adeberti marhchionis viduæ" by charter dated 1 Oct 1058.
The necrology of Melk records the death "XIII Kal Mar" of "Frouza marchionissa". The necrology of Kloster Neuburg records the death "XIII Kal Mar" of "Fruoza marchionissa". 1
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