Katie Price was born Katrina Amy Alexandra Alexis Infield. She changed her name at age 17, dropping her birth father's surname Infield, after he left when she was four. She took the surname of her mother's second husband, Paul Price, and became known as Katie Price. Her original full name given by her mother, Amy, included all four names: Katrina Amy Alexandra Alexis. The name change also coincided with the start of her glamour modeling career. For her modeling career, she used the pseudonym "Jordan" to protect her family's privacy.