In The Commodore's Hands by Mary Nichols

Commodore John Drymore's mission is clear: sail to France, rescue Comte Giradet from prison and bring him and his daughter back to England safely. But Lisette Giradet defies the Commodore at every turn and soon gets under his skin more deeply than the bullet in his arm.

Desperate to rescue her brother from the guillotine, Lisette smuggles herself back on board the ship. With her life in jeopardy, she's given no choice – she must assume the role of the Commodore's wife!

The Warrior's Princess Bride by Meriel Fuller

Benois le Vallieres, the legendary Commander of the North, is ruthless in battle. He feels no emotion...until he rescues a feisty maid from danger.

Tavia of Mowerby is no one – a peasant who survives on her courage and crossbow alone. But when her royal blood is discovered, only marriage to Benois can keep her safe. She has his fearsome protection, but will she ever melt his frozen heart?