At the Earl's Command — Sally James

Kate Byford is ordered by her grandfather, the Earl of Malvern, to come to London, where he is dying. But his other order, that she marry his heir, Adam Rhydd, she is unwilling to accept. After the earl's death, Adam sends her to an academy for young ladies to learn how to behave. But Kate's ambitious efforts to escape are routinely thwarted by Adam.

(Regency Romance by Sally James writing as Marina Oliver; originally published by Robert Hale [UK])