The Indispensable Wife (Châteaux and Shadows #1)
Philippa Lodge

One terrifying morning mercenaries overrun their château and usurpers take Aurore hostage. Miles away at Versailles, where he is required to dance attendance on Louis XIV, Dominique is nearly killed by a crossbow bolt.
Escaping, Aurore travels with a troupe of itinerant musicians, hiding in the open while discovering hidden resources within herself.
Dom sets out to find his wife. He needs his old life back. He needs revenge. But his lands, his title, and his honor mean nothing unless he can win back the love of his indispensable wife.