▁is ▁a ▁corpor ation ▁of ▁th ir teen ▁her ald s , ▁sty led ▁Offic ers ▁in ▁Ord inary . ▁This ▁th ir teen ▁can ▁be ▁divided ▁hier arch ically ▁into ▁three ▁distinct ive ▁ranks : ▁three ▁Kings ▁of ▁Ar ms , ▁six ▁Her ald s ▁of ▁Ar ms ▁and ▁four ▁P urs u iv ants ▁of ▁Ar ms . ▁There ▁are ▁also ▁presently ▁seven ▁Offic ers ▁Ext ra ordinary , ▁who ▁take ▁part ▁in ▁cer emon ial ▁occasions ▁but ▁are ▁not ▁part ▁of ▁the ▁College . ▁As ▁members ▁of ▁the ▁Royal ▁House hold , ▁the ▁her ald s ▁are ▁appointed ▁at ▁the ▁pleasure ▁of ▁the ▁S over eign ▁on ▁the ▁recommendation ▁of ▁the ▁Earl ▁Marsh al . ▁The ▁Offic ers ▁in ▁Ord inary ▁are ▁appointed ▁by ▁Let ters ▁Pat ent ▁under ▁the ▁Great ▁Se al ▁of ▁the ▁Real m , ▁and ▁the ▁Offic ers ▁Ext ra ordinary ▁by ▁Royal ▁Sign ▁Man ual ; ▁all ▁appoint ments ▁are ▁announced ▁in ▁the ▁London ▁Gazette . ▁ ▁All ▁of ▁the ▁officers ▁in ▁Ord inary ▁of ▁the ▁College ▁were ▁first ▁instit uted ▁at ▁different ▁dates ▁( some ▁even ▁before ▁the ▁incorpor ation ▁of ▁the ▁College ), ▁some ▁origin ating ▁as ▁private ▁servants ▁of ▁no blem en , ▁some ▁being ▁Royal ▁from ▁the ▁start . ▁They ▁take ▁their ▁names ▁and ▁bad ges ▁from ▁the ▁titles ▁and ▁royal ▁bad ges ▁of ▁the ▁monarch s ▁of ▁England . ▁The ▁officers ▁Ext ra ordinary , ▁however ▁take ▁their ▁names ▁from ▁the ▁titles ▁and ▁est ates ▁of ▁the ▁Earl ▁Marsh al