[DHSP, 154] [47] gives her husband as Giraud Arnaud de Villeneuve. Louise is not mentioned as her child, but D’Hozier says she has others apart from the three he mentions (the other three that appear here).
[ES, XIV, 183] [44] mentions no Louise as her child.
[C-D, XVIII, 11] [17] gives her and her husband, but not her children.

Seigneur des Arcs, de Trans, de Flayosc, &c.
[DHSP, 154] [47] has his marriage to Sibylle.
[C-D, IX, 331] [17] calls him Arnaud de Villeneuve, Baron des Arcs, but gives him a different wife, Bourguette de Sabran. Were they the same person? This needs to be checked.
[C-D, XIX, 795] gives Arnaud de Villeneuve marrying Sibylle de Sabran, but no child Louise.