hidalguía
nobility
hidalgo
nobleman
+
-ía
quality or state of
Hidalguía means nobility and can be thought of as hidalgo0 (nobleman0) + -ía1 (quality or state of1), so it's the quality or state of being a nobleman.
noun
- nobilityNobility of character; noblenessSu hidalguía se reflejaba en sus acciones generosas. // His nobility was reflected in his generous actions.