What's the difference between seignior and seignioralty?

Seignior

Definition:

• (n.) A lord; the lord of a manor.
• (n.) A title of honor or of address in the South of Europe, corresponding to Sir or Mr. in English.

Example Sentences:

Seignioralty

Definition:

• (n.) The territory or authority of a seignior, or lord.

Example Sentences: