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Their full names are Vincent Crabbe and Gregory Goyle.
Joshua Herman (Goyle), Jamie Waylett (Crabbe)
Goyle is fatter than Crabbe but both are fat
Draco Malfoy, Vincent Crabbe, Gregory Goyle, and Pansy Parkinson.
Crabbe never marries as he dies in The Deathly Hallows. It is never stated whether or not Goyle marries.