Editing Prince regent (section)

==Prince Lieutenant in Luxembourg==
The heir-apparent or heir-presumptive to the [[grand duke of Luxembourg]] may be titled ''prince-lieutenant'' ('prince deputy') during a period in which [[Grand Duke of Luxembourg|the incumbent]] remains formally on the grand ducal throne, but (progressively, most) functions of the crown are performed by the 'monarch [[apprentice]]', as [[Jean, Grand Duke of Luxembourg|prince Jean]] did 4 May 1961 &ndash; 12 November 1964 in the last years of his mother [[Charlotte, Grand Duchess of Luxembourg|Charlotte]]'s reign until she abdicated and he succeeded to the grand ducal throne (she lived until 1985), and Jean's own son [[Henri, Grand Duke of Luxembourg|prince Henri]] 3 March 1998 &ndash; 7 October 2000 until his father abdicated and he succeeded (Jean lived until 2019).