Hungary
- Personal union with Croatia (disputed)
- Personal union with Poland and Bohemia 1301–1305.
- Personal union with Poland from 1370 to 1382 under the reign of Louis the Great. This period in Polish history is sometimes known as the Andegawen Poland. Louis inherited the Polish throne from his maternal uncle Casimir III. After Louis' death the Polish nobles (the szlachta) decided to end the personal union, since they didn't want to be governed from Hungary, and chose Louis' younger daughter Jadwiga as their new ruler, while Hungary was inherited by his elder daughter Mary. Personal union with Poland for the second time from 1440 to 1444.
- Personal union with Bohemia from 1419 to 1439 and from 1490 to 1918.
- Personal union with the Holy Roman Empire from 1410 to 1439 and from 1526 to 1806 (except 1608–1612 and 1740-1780).
- Real union with Austria from 1867 to 1918 (the dual monarchy of Austria-Hungary) under the reigns of Franz Joseph and Charles IV.
Read more about this topic: Personal Union