Owner of £10m Giotto to appeal High Court ruling that painting left Italy unlawfully
Judge finds in favour of Arts Council England, but collector Kathleen Simonis argues Italian laws are incompatible with EU free movement of goods
Cavallini discovery reopens superiority debate between Quattrocento Roman and Florentine schools
Will Cavallini or Giotto reign supreme?
Giotto's Scrovegni Chapel frescoes are to be "restored", principally by low-tech improvements to the surroundings
Conservation efforts have been underway since the Seventies