He accompanied the king's brother Henri III on a campaign in 1569, and joined with reiters under the comte de Bassompierre in late 1572.

[3][4][5] During the 1560s, he served as a page to Catherine de Medici, before accompanying Anjou, brother to the king, on his campaign against the Protestants in the third civil war.

Schomberg travelled with him to his new country, and served as a member of his household during his brief reign there, before his return to France on the death of Charles IX.

[7][8] During 1577, Schomberg was a recognised member of Henri's entourage, and is recorded as one of his mignons by the contemporary memoirist Jules Gassot.

In the fight that followed, Schomberg was able to strike him hard on the head with his rapier, a wound for which Livarot would have to convalesce for weeks.

Contemporaries, such as François de la Noue denounced the duel for the senseless waste of life it cost.