King Felipe of Spain will put 14-year-old Princess Leonor, his elder daughter and heir to the throne, in the spotlight tomorrow as part of an effort to win back support for the royals in the rebellious region of Catalonia.

Felipe, his wife and two daughters are wading into treacherous waters in a visit to Barcelona, where anti-royalist sentiment runs high and hundreds have been injured in protests since October 14, when a Madrid court sentenced separatist leaders to lengthy jail terms.

One activist group has promised to give Felipe the “welcome he deserves” — expected to involve burning portraits of the king. Hundreds of special protection officers and other police will be on duty.

Some see the Barcelona visit as an attempt to rally the