The glittering lights

"When they were still children, their loving fathers had arranged that heiress Cassandra Sherburn would marry with the heir of the Duke of Alchester, the young Marquis of Charlbury. Now that Cassandra was old enough to become his bride, the wealthy and beautiful country heiress realized that more than anything in the world she truly wanted to marry him. But owing to the unexpected deaths of first Cassandra's grandfather, then the Duke, their engagement is postponed"--First preliminary page.