Au fur et à mesure

 que

  diminue

Verb

  le

Determiner

  pouvoir

Noun

  royal

Adjective

 s'affirme  celui

1️⃣

Pronoun

  des

  féodaux

Noun

.

As royal power diminishes, that of the feudal lords asserts itself.

As royal power diminishes, that of the feudal lords asserts itself.