Showing Byron's Child by Carola Dunn

Jodie Zaleski meets Giles Faringdale, a lord no less, in contemporary Oxford—only to find herself transported with him back to his ancestral home in Regency times. An impetuous and determined researcher, Jodie lands Giles and his ancestors in more than one scrape as she explores London of 1816, and attempts to rescue Byron’s daughter. There’s timid Emily Faringdale, engaged against her wishes to the awesome Lord Thorncrest, and her sister-in-law Charlotte, who learns a lesson in maneuvering her overbearing husband Roland, the current Lord Faringdale. But mostly there is Giles, who must find a way back home for this amazing woman who has made a journey in time with him.

Regency Romance/Time Travel by Carola Dunn; originally published by Walker