Patriarchs and bishops of the Coptic Catholic[8] and Armenian Catholic[9] churches wear klobuks as well, although it is not a headgear worn by their Oriental Orthodox counterparts. Red klobuks have been worn by a Coptic Catholic patriarch,[10] an Armenian Catholic catholicos,[11] and a Ukrainian Catholic major archbishop[12] after being elevated to the cardinalate. A purple klobuk has been used by a Ukrainian Catholic bishop.[13]