What's the Name of That Book??? discussion

Hero has two little nieces who speak Welsh. He is not friendly with them but isn't unkind either. Forbids them to speak Welsh. They remind him too much of his estranged sister.
Hires a governess for them. She is very kind to the girls. Slowly removes the gap between the uncle and nieces. Falls in love with him.

A Governess for the Brooding Duke: A Historical Regency Romance Book by Bridget Barton?

yes thank you!