Brave Fine Art has dated this piece to the 1860s.
As such, riding habits were developed specifically for equestrian activities to cater for the increasing number of fashion-conscious ladies on horseback. Here, in around 1860, the lady is wearing a long black habit - a common colour as it disguises the mud.

She’s riding side-saddle as one would expect. Any lady choosing to ride ‘astride’ would’ve been frowned upon and considered unfavourably.
The context of this wonderful piece is unknown but it bears two interesting clues. Firstly, it’s monogrammed JH in the lower left on a stone. And secondly, the saddle bears a coat of arms with a crown or coronet. Is she of Royal heritage perhaps?

Monogrammed in the lower left, framed (in a contemporary frame of Dutch origin) and glazed.
Medium: Watercolour on paper
Overall size: 25” x 19” / 64cm x 49cm
Year of creation: c. 1860
Provenance: Private collection, Holland / Private collection, England.
Condition: Artwork presents well. Frame with some light wear.
Brave Fine Art has dated this piece to the 1860s.
Exquisite antique paintings that capture the imagination.
You can view the stock and full dealer information on the Brave Fine Art Profile Page