Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: Nineteen years later, their son Philip the Handsome married Joanna of Castile, daughter of King Ferdinand II of Aragon and Queen Isabella I of Castile. Joanna (also known as Juanna the Mad) was sister to Katherine (of Aragon), the first wife of Henry VIII of England. Following the death of _her_ brother and two sisters, Joanna became heiress to the Spanish throne. <sep>, Pronoun: her

Joanna