2 QUEENS, One Hive! I find Brood Above the Queen Excluder in MY Struggling Hive. Two Queens or One?

I find myh marked queen below the excluder but I also find brook above the excluder indicating two queens co existing in the same hive... 2 QUEENS, One Hive! I find Brood Above the Queen Excluder in MY Struggling Hive. Two Queens or One?