Always nice to come across data online that backs up history bits I've used in my books!

 ". . .Lafayette’s division played a key role in breaking British defenses in Yorktown, which forced them to surrender on October 19, 1781."

https://www.fatherly.com/play/hamilton-and-history-the-real-facts-about-lafayette-schuyler-and-laurens

When Washington appeared, with men, materiel, and horses,

He put “The Boy” in charge of nearly one-third of our forces.

Thus on the Yorktown battlefield, our fa-vor-ite marquis

Performed a starring role to win this final vic-to-ry.

                —Liberty-Loving Lafayette © 2020 by Dorothea Jensen