ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti ˈeɪt, ðə nˈaɪt ʌv kˈɑːlɚ wʌz ˌɪntɹədˈuːst æz ðə hˈaɪɪst klˈæs ʌvðɪ ˈɔːɹdɚ, lˈɪmɪɾᵻd tə sˈɪksti ɹᵻsˈɪpiənts.
In 1878, the Knight of Collar was introduced as the highest class of the order, limited to 60 recipients.