In November 1717 he took a 26-gun French ship called the Concorde, added 14 guns, & renamed it Queen Anne's Revenge
She was used as a slave ship by the 
French, and was captured by pirates in 1717 ... Blackbeard made La Concorde 
de Nantes into his flagship, adding cannon... [DOC] [TLE] Blackbeard Chronology and Facts | Queen Anne's Revenge Project [PAR] On his way he [Blackbeard] met with a pirate sloop of 10 guns, commanded by 
one ... that in October 1717 Teach was in command of a 12-gun sloop named 
Revenge.