Petronille of Upper Lotharingia

-http://fmg.ac/Projects/MedLands/LOTHARINGIA.htm#Beatricedied1076

d) [PETRONILLE . The Chronique of Jean de Bayon records that "Fridericus ex filio nepos, quia ipse æquivocus filius ante obierat" succeeded on the death of "Theodericus dux" in 1029 and records that he had "sorores tres, prima Sophia, quam Ludovicus comes, secunda Beatrix quam Bonifacius marchio Italiæ, tertia Petronix, quam quidam Elisatii princeps"[165]. No other source has been found which identifies Pétronille. Viellard speculates that her husband may have been Gérard d´Alsace Duke of Lorraine and that she died soon after their marriage. He notes that Dom Calmet suggests that she married Berthold I von Zähringen Duke of Carinthia[166]. m ---.]