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“She doesn’t lie to you,” the Broadway performer Charlotte d’Amboise said.

Lader is typically on retainer for a handful of Broadway shows — at the moment those include “Chicago,” in which D’Amboise has long performed; “Moulin Rouge”; “Spamalot”; and “Sweeney Todd” — seeing any performer who requires coaching.

Francis recruits Leonardo to join his court at the Château d’Amboise, in the Loire Valley.

That’s fitting because “Jewels” was Balanchine’s tribute to his dancers of that time: to the enchanting elegance of Violette Verdy and Mimi Paul in “Emeralds”; the insouciant charms and street smarts of Patricia McBride and Edward Villella in “Rubies”; and the grand glamour of Suzanne Farrell and Jacques d’Amboise in “Emeralds.”

Later, she worked for the National Dance Institute under Jacques d’Amboise.