▁s ash ▁of ▁black ▁sil k ▁s ars en et ▁over ▁their ▁tab ards ▁( in ▁ancient ▁times , ▁they ▁would ▁have ▁worn ▁long ▁black ▁h ood ed ▁clo aks ▁under ▁their ▁tab ards ). ▁ ▁The ▁three ▁Kings ▁of ▁Ar ms ▁have ▁also ▁been ▁entitled ▁to ▁wear ▁a ▁crown ▁since ▁the ▁ 1 3 th ▁century . ▁However , ▁it ▁was ▁not ▁until ▁much ▁later ▁that ▁the ▁specific ▁design ▁of ▁the ▁crown ▁was ▁reg ulated . ▁The ▁silver - g ilt ▁crown ▁is ▁composed ▁of ▁six teen ▁ac anth us ▁leaves ▁altern ating ▁in ▁height , ▁ins cribed ▁with ▁a ▁line ▁from ▁Ps alm ▁ 5 1 ▁in ▁Latin : ▁M iser ere ▁me i ▁De us ▁sec und um ▁mag nam ▁miser ic ord iam ▁tu am ▁( trans l ated : ▁Have ▁mer cy ▁on ▁me ▁O ▁God ▁according ▁to ▁Th y ▁great ▁mer cy ). ▁Within ▁the ▁crown ▁is ▁a ▁cap ▁of ▁crim son ▁vel vet , ▁l ined ▁with ▁er mine , ▁having ▁at ▁the ▁top ▁a ▁large ▁tu ft ▁of ▁t ass els , ▁wr ought ▁in ▁gold . ▁In ▁medieval ▁times ▁the ▁king ▁of ▁arms ▁were ▁required ▁to ▁wear ▁their ▁crow ns ▁and ▁attend ▁to ▁the ▁S over eign ▁on ▁four ▁high ▁fe asts ▁of ▁the ▁year : ▁Christmas , ▁E aster , ▁Wh its unt ide ▁and ▁All ▁Saint ' s ▁Day . ▁Today , ▁the ▁crown ▁is ▁reserved ▁for ▁the ▁most ▁solemn ▁of ▁occasions . ▁The ▁last ▁time ▁these ▁crow ns ▁were ▁worn ▁was