His previous conquests include stealing the Trask Diamond from Doctor Doom.

Black Fox and Ant-Man

Black Fox and Ant-Man first met during the fight between the then newly formed Mighty Avengers and the Mole Man. Black Fox used the fight to loot a jewelry shop. He was stopped by Ant-Man Eric O'Grady who took the stolen goods and sold them. Later an angry Black Fox entered Eric's apartment at night and threaten Eric. Ant-Man helped Black Fox to regain the stolen jewelry from the pawnshop. Black Fox gave Eric 20% of the stolen goods. The two became friends and liked to play Nintendo Wii together. Black Fox later stole the Wii console. When Eric was arrested by S.H.I.E.L.D. for stealing the Ant-Man suit the Black Fox entered the helicarrier. Black Fox was arrested  because Eric double-crossed him. Later Eric visited Black Fox and told him that he forgave him and that he could keep thw wii console.

Others

Another Black Fox was a member of the First Line. Dr. Robert William Paine was a former secret agent in WWII who became a costumed crimefighter. His plane was the Flying Fox, and his headquarters was called the Foxhole.