Empress Airline?
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@qqwertzde Not 100% sure but believe Canadian Airlines gave some of their fleet the name 'Empress Of' at some point.
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@qqwertzde the Empress callsign is associated with Canadian North, according to wikipedia it has been retired now though.
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@qqwertzde Canadian North and First Air merged now they use Arctic for their callsign and code AKT. Empress was the callsign of the original Canadian North airline.