Noun
One who has high and controlling authority in sacred things; the chief of a sacred order; as, princely hierarchs.
Source: Webster's dictionaryAdministration of the sacrament is reserved to the Parish Priest or to another priest to whom he or the local hierarch grants permission, a permission that can be presumed if in accordance with canon law. Source: Internet
After a struggle to appoint a successor, a Hierarch recognized by the Patriarchate of Alexandria, consecrated Metropolitan NIKOLAI in 1978 to faithfully serve the Church. Source: Internet
Such rights belong to the ruling hierarch and it can only happen when the blessing of the patriarch is received. Source: Internet
Then the patriarch gives his blessing and the local hierarch performs the act of canonization at the local level. Source: Internet