The Queen of Sidonia

"Princess Cosima will be queen, if she survives to her eighteenth birthday.
In a galaxy controlled by massive corporations, few worlds are truly free. When explorers find a priceless wormhole near Sidonia, the hostile attention of the Aquitaine Corporation focuses on the small, backwater kingdom.
To protect their world, Sidonia’s royalty rush seventeen year old Princess Cosima into an arranged marriage, one that will guarantee a treaty and shield Sidonia from Aquitaine’s clutches. But Cosima never asked for the honor of becoming the next queen to a man she doesn’t love.
With the fate of the planet in the balance, a team of deadly assassins targets Cosima. The best killers money can buy will see the Princess dead before her wedding day. Cosima will need her wits to uncover the identity of the assassins targeting her, and her courage to stay alive in the middle of an interstellar power struggle.
If you like space opera novels with intrigue, a fast-paced plot and a tale of survival against impossible odds, then read The Queen of Sidonia today!"