Leopold IV.
Leopold IV is the name of the following rulers:
- Leopold IV of Habsburg ( the thickness; 1371-1411 ), Duke of Austria ( 1386-1411 )
- Friedrich Leopold IV (Anhalt -Dessau ), Duke ( 1817-1871 )
- Leopold IV ( lip ), Prince ( 1905-1918 ), previously known as Leopold of Lippe - Biesterfeld Count Regent of Lippe
- Leopold (Bayern) ( the Bountiful; ~ 1108-1141 ), Margrave of Austria ( 1136-1141 )
- Disambiguation