▁lord ▁as ▁a ▁sign ▁of ▁special ▁recognition ; ▁but ▁in ▁the ▁fif teenth ▁century ▁the ▁use ▁of ▁ro bes ▁became ▁formal ised ▁with ▁pe ers ▁all ▁we aring ▁ro bes ▁of ▁the ▁same ▁design , ▁though ▁varied ▁according ▁to ▁the ▁rank ▁of ▁the ▁wear er . ▁Two ▁distinct ▁forms ▁of ▁ro be ▁emer ged , ▁and ▁these ▁remain ▁in ▁current ▁use : ▁one ▁is ▁worn ▁for ▁parliament ary ▁occasions ▁and ▁the ▁other ▁is ▁generally ▁worn ▁only ▁at ▁coron ations . ▁ ▁Cor on ets ▁and ▁head ge ar ▁ ▁In ▁the ▁United ▁Kingdom , ▁a ▁peer ▁we ars ▁his ▁or ▁her ▁coron et ▁on ▁only ▁one ▁occasion : ▁for ▁the ▁monarch ' s ▁coron ation , ▁when ▁it ▁is ▁worn ▁along ▁with ▁coron ation ▁ro bes . ▁ ▁The ▁coron et ▁of ▁a ▁du ke ▁( a ▁silver - g ilt ▁circ let , ▁ch ased ▁as ▁j ew elled ▁but ▁not ▁actually ▁gem med ) ▁has ▁eight ▁st raw berry ▁leaves ; ▁The ▁coron et ▁of ▁a ▁marqu ess ▁has ▁four ▁st raw berry ▁leaves ▁and ▁four ▁silver ▁balls ▁( known ▁as ▁" pe ar ls ", ▁but ▁not ▁actually ▁p ear ls ), ▁slightly ▁raised ▁on ▁points ▁above ▁the ▁rim ; ▁The ▁coron et ▁of ▁an ▁ear l ▁has ▁eight ▁st raw berry ▁leaves ▁( four ▁visible ) ▁and ▁eight ▁" pe ar ls " ▁raised ▁on ▁stal ks ; ▁The ▁coron et ▁of ▁a ▁vis count ▁has ▁six teen ▁" pe ar ls " ▁touch ing ▁one ▁another ; ▁The