How many Black Knights (Black Wings Generals) are there really?

Hiver exists in all storylines, save for the Thief and Pirate legends (whom from a source I hear are to be named Boralis and Krytus -

wasnt the Pirate Legend Kyrins Father Testonen, who left Kyrin to Athena Pierce to go fight the Black Mage? though i wouldnt know the sucessors name if the story was going to come out similar to Evans story compared to Freud