die Fürstin
princess consort
The wife of a prince.
Die Fürstin begleitete ihren Mann, den Fürsten von Monaco, zum Staatsbankett.
The princess consort accompanied her husband, the Prince of Monaco, to the state banquet.

princess
Loading your saved state.
princess consort
The wife of a prince.
Die Fürstin begleitete ihren Mann, den Fürsten von Monaco, zum Staatsbankett.
The princess consort accompanied her husband, the Prince of Monaco, to the state banquet.

'Die Fürstin' (the princess/princess consort) is the feminine form of 'der Fürst' (the prince). The ending '-in' is often used in German to form the feminine version of titles, professions, or designations.
Die neue Chefin wurde heute dem Team vorgestellt.
The new female boss was introduced to the team today.
The word belongs to the language of nobility. You find it mainly in historical texts, in fairy tales, or in reporting about principalities that still exist today, such as Monaco or Liechtenstein.
In vielen Märchen ist die Hauptfigur eine Prinzessin oder eine junge Fürstin.
In many fairy tales, the main character is a princess or a young princess.
The context reveals whether the wife of a prince (m01) or an independent female ruler (m02) is meant. If her husband is mentioned or her role as a spouse is emphasized, it is m01. If her own governmental affairs are described, it is m02.
Die Fürstin unterstützte die politischen Entscheidungen ihres Mannes.
The princess supported her husband's political decisions.
Very often, the title is connected with the name of the territory. The structure is then: 'die Fürstin von [Name des Ortes]' (the Princess of [place name]).
Die Fürstin von Monaco ist für ihren eleganten Stil bekannt.
The Princess of Monaco is known for her elegant style.
queen
'die Königin' and 'die Fürstin' both refer to women with a high noble title or to the wife of such a ruler. The most important difference is rank and territory. A queen belongs to a kingdom and has a very high position as a ruler or as the wife of a king. A princess belongs to a principality or is the wife of a prince. The words can be confused because both come from the world of nobility and rule. If it is about a kingdom or a king, 'Königin' fits. If it is about a principality or a prince, 'Fürstin' is more precise.

Die Fürstin lebte mit ihrer Familie in einem kleinen Fürstentum.
The princess lived with her family in a small principality.
Die Königin begrüßte die Gäste im Schloss.
The queen greeted the guests in the palace.