Juan V de Lanuza

Juan de Lanuza y Urrea (1564–1591), called the Younger, was the last hereditary Justice of Aragon, succeeding his father in September 1591. He was at once caught up in the Alterations of Aragon, sparked by Philip II's attempt to seize the fugitive secretary Antonio Pérez through the Inquisition.

When royal troops marched on Zaragoza, Lanuza declared the invasion a violation of Aragon's fueros and led a makeshift force against them; his men scattered and he was captured. On 20 December 1591 Philip II had him beheaded without trial.