"Grand Cross is the highest class in many orders, and manifested in its insignia. Exceptionally, the highest class may be referred to as Grand Cordon or ...
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equivalent. In other cases, there may exist a rank even higher than Grand Cross, e.g. Grand Collar. In rare cases,[example needed] the insignia itself is referred to as the "grand cross".
In international relations, in many times the class of Grand Cross is typically reserved for royalty, heads of state and equivalent. Sometimes a holder of the highest class or grade are referred to as "Commander Grand Cross",[A 1] "Knight Grand Cross", or just "Grand Cross"." - (en.wikipedia.org 16.01.2022)
