This king was nicknamed the Bad in contrast to the French king John II the Good in the context of the Hundred Years War, in which Navarre was involved.
He had a very close relationship with Ujué.
In fact, began construction of the Gothic church of Santa María de Ujué and tried unsuccessfully to establish a university in that city. In his last will directed that his body rest in Pamplona, Roncesvalles and his entrails in his heart to Santa Maria de Ujué.
Upon the death of the January 2, 1387, was offered a hundred masses for his soul and the bells of the cathedral of Pamplona doubled to dead for fifteen days and fifteen nights.