In the Iberian Peninsula, Portugal's and Spain's university heads or presidents have the title . Those universities whose foundation has been historically approved by the Pope, as e.g. the rector of the University of Coimbra, the oldest Portuguese university, is referred to as "Magnífico Reitor (Rector's name)" ("Rector Magnificus (Rector's Name)"). The others are referred to as "Excelentíssimo Senhor Reitor". In Spain, all Rectors must be addressed as "Señor Rector Magnífico" according to the law (Ley Orgánica 4/2007), but the Rector of the University of Salamanca, the oldest on the Iberian Peninsula, is usually styled according to academic protocol as "Excelentísimo y Ilustrísimo Señor Profesor Doctor Don (Rector's name), Rector Magnífico de la Universidad de Salamanca" ("The Most Excellent and Most Illustrious Lord Professor Doctor Don (Rector's name), "Rector Magnificus" of the University of Salamanca").