Countess
by Josephine Edgar.

A glorious novel of love and war - the Spellbinding Sequel to Duchess. Viola Corbett lives amid luxury in Vienna with her husband, Count Eugene Erhmann, their children, Therese and Lorenz, and her ilegitimate son James-Carlo, until all collapses with the outbreak of the First World War. A story of greed, lust, and unreasonable hate; but most of all, a captivating romance.