2 adjectives to describe royaume

Por amor le counte Guillaume, Le plus vaillant de cest royaume, Mentremis de cest livre faire, Et de l'Anglois en Romans traire, &c. M. le Grand, in his preface to some of Mary's fables, which he has published in French prose, informs us that this person was Earl William de Dampierre.

Por amor le counte Guillaume, Le plus vaillant de cest royaume, Mentremis de cest livre faire, Et de l'Anglois en Romans traire, &c. M. le Grand, in his preface to some of Mary's fables, which he has published in French prose, informs us that this person was Earl William de Dampierre.

2 adjectives to describe  royaume