Her relationship with her troubled stepson Carlos was warm and friendly .
Elisabeth had originally been betrothed to Philip 's son , Carlos , Prince of Asturias , but political complications unexpectedly necessitated instead a marriage to Philip .
Elisabeth 's relationship with her troubled Prince Carlos was warm and friendly .
Elisabeth had originally been betrothed to Philip 's son , Carlos , Prince of Asturias , but political complications unexpectedly necessitated instead a marriage to Philip .