Definition of "noblesse"

But thou , whose noblesse keeps one stature still

1612, Ben Jonson, Epigrams

Faire braunch of noblesse, flowre of cheualrie, / That with your worth the world amazed make, / How shall I quite the paines, ye suffer for my sake?

1590, Edmund Spenser, “Book I, Canto VIII”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie

All gentlemen are almost obliged to it: and I know no reason we should give that advantage to the commonalty of England to be foremost in brave actions, which the noblesse of France would never suffer in their peasants

1667, John Dryden, Annus Mirabilis: The Year of Wonders, 1666. […], London: […] Henry Herringman, […], (please specify the stanza number)