Lee Falk wrote that the first Phantom married two different women (Christina and Marabella). Team Fantomen have him marrying Marabella who was mentioned first and most by Lee Falk. We recommend sticking to Marabella as the wife of the first Phantom and mother of the second Phantom.
Marabella was described by Lee Falk as a granddaughter of Christopher Columbus and also a Spanish princess.
Marabella is a princess from the Spanish principality called Maravilloso. She was promised to marriage to someone else but that was disolved after no bond was formed. She became paralysed before taking over from the throne and stayed ruler until her death. This meant she stayed separated from the Phantom.