BARONIAL

baronial, imposing, noble, stately

(adjective) impressive in appearance; “a baronial mansion”; “an imposing residence”; “a noble tree”; “severe-looking policemen sat astride noble horses”; “stately columns”

Source: WordNet® 3.1

Adjective

baronial (comparative more baronial, superlative most baronial)

Belonging or relating to a baron or barons.

Suitable for a baron.

Source: Wiktionary

Ba*ro"ni*al, a.

Definition: Pertaining to a baron or a barony. "Baronial tenure." Hallam.

Source: Webster’s Unabridged Dictionary 1913 Edition