Justiciar n. : Same as Justiciary.

Example:
My family has a lot of royalty ancestors. How can I learn more about them?

Taxonomy
Justiciar, office, Justicar, Chief Justiciar, the Chief, Scotland, free encyclopedia, judge, Justices, England, shire, the Sheriff, 02-15, 13th century, Chief, jurisdictions, to the King, Richard I.

Defination from the web:
Justiciar, Hubert de Burgh, 1st Earl of Kent, was removed from office in 1231, and the Chancellor soon took the position formerly ... The title Justiciar was given by Henry II of England to the Seneschal of Normandy. ...