(Princely) County of Nassau, Principalities of Nassau
- Coat of arms
- Status – County
- Capital City- Nassau
- Other Settlements –
- Languages – German (Rhine Franconian dialects, Moselle Franconian dialects)
- Religion(s) –
- Government –
- Legislature –
- Current Ruler – Philip II, Count of Nassau-Weilburg/ Margaret of Loon-Heinsberg
- Other Notable residents – John II of Nassau-Saarbrücken/ Johanna of Loon-Heinsberg , Jan IV of Nassau/ Maria of Loon-Heinsberg, Henry II, Count of Nassau-Dillenburg/ Irmgard of Schleiden-Junkerath
