how many crewmates did he have in his fleet?
250 men, according to Captain Hume
Blackbeard
Captain Hume of reported on 6 February that a "Pyrate Ship of 36 Guns and 250 men, and a Sloop of 10 Guns and 100 men were Said to be Cruizing amongst the Leeward Islands". 
who is blackbeard? He is also known as Edward Teach - an English pirate. how was he named "blackbeard"? Due to his thick black beard and fearsome appearance who was he up against in his last battle? Pirates on Ocracoke Island where is the island's location? It is within Hyde County, North Carolina where was the english pirate born? UNANSWERABLE when was he born? Around 1680
wiki:1603492
Blackbeard [SEP] Enlargement of Teach's fleet
On 9 April Teach's enlarged fleet of ships looted and burnt "Protestant Caesar". His fleet then sailed to Grand Cayman where they captured a "small turtler". Teach probably sailed toward Havana, where he may have captured a small Spanish vessel that had left the Cuban port. They then sailed to the wrecks of the 1715 Spanish fleet, off the eastern coast of Florida. There Teach disembarked the crew of the captured Spanish sloop, before proceeding north to the port of Charles Town, South Carolina, attacking three vessels along the way.