Pastel, portrait of a lady of quality, Restoration period, signed R. Denné

Beautiful and elegant pastel depicting a lady of quality in a ball gown, Restoration period, signed R.Denné on the right circa 1830-1840, first half of the 19th century.
It comes with its original oval frame carved with flowers.
The pastel we are presenting bears witness to the pictorial romanticism of this period.
The delicacy of the brushstrokes and the vaporous colors in this portrait are remarkable.
Private collection.
In perfect condition. Dimensions :
Frame: h.63 cm x l.56 cm.
Pastel : h.53 cm x l.43 cm.