Conversation so far:
What year did Isabella I of Castile die?
Isabella I of Castile officially withdrew from governmental affairs on 14 September 1504 and she died that same year on 26 November at the Medina del Campo Royal Palace.
What did Isabella I of Castile do in her later life?
Isabella received the title of Catholic Monarch by Pope Alexander VI.
What year was it for Isabella I of Castile received the title of Catholic Monarch?
Why did Isabella I of Castile not approve of Alexander VI giving her the title Catholic Monarch?
Isabella I of Castile did not approve of Alexander VI's behavior and involvement.

Question: How long did she stay
Self-contained rewrite: How long did Isabella I of Castile stay Catholic Monarch?