Wife of Custodian of the Two Holy Mosques Princess Hisah bint Trad Al Shaalan here yesterday evening patronized a charity care festival. Princess Aadlah bint Abdullah bin Abdul Aziz, chairperson of the festival's organizing foundation, said in a statement to Saudi Press Agency that the participation of non-Saudis from Arab and friendly countries contributes to the enrichment of ideas and the exchange of experiences.