Mette-Marit Tjessem Hoiby, now the Crown Princess of Norway, was a single mother when she married into royalty.
Mette-Marit first met Crown Prince Haakon at a garden party during the Quart Festival, Norway's largest rock festival. When the two met again years later, she was a single mother. They married in 2001 and have since added two more kids to the family.