te ▁in ▁ 1 6 0 8 . ▁He ▁was ▁one ▁of ▁eight ▁children ▁of ▁Isaac ▁de ▁Cas am aj or ▁de ▁Char rit te ▁and ▁Marie ▁de ▁May t ie . ▁Jean - Pierre ▁de ▁Cas am aj or ▁de ▁Char rit te ▁was ▁born ▁in ▁the ▁château ▁de ▁Char rit te ▁and ▁bapt ized ▁on ▁ 1 0 ▁September ▁ 1 6 4 8 ▁in ▁the ▁Char rit te ▁parish ▁church . ▁ ▁Early ▁career ▁( 1 6 7 3 – 1 7 0 5 ) ▁ ▁Char rit te ▁entered ▁the ▁Gard es ▁de ▁la ▁Marine ▁at ▁the ▁age ▁of ▁ 2 5 , ▁and ▁campaign ed ▁with ▁them ▁in ▁Canada , ▁on ▁the ▁coast ▁of ▁Africa ▁and ▁in ▁the ▁Le ew ard ▁Islands . ▁He ▁became ▁a ▁ ▁ship - of - the - line ▁en sign ▁( ense igne ▁de ▁v ais seau ) ▁in ▁January ▁ 1 6 8 9 , ▁and ▁after ▁a ▁long ▁period ▁at ▁sea ▁was ▁promoted ▁to ▁lieutenant ▁on ▁ 1 ▁June ▁ 1 6 9 3 . ▁The ▁next ▁year ▁he ▁was ▁given ▁command ▁of ▁the ▁royal ▁fr ig ate ▁L ut in ▁with ▁orders ▁to ▁cru ise ▁around ▁the ▁Î le ▁d ' Y eu . ▁ ▁While ▁in ▁command ▁of ▁the ▁L ut in ▁he ▁was ▁ordered ▁to ▁esc ort ▁a ▁con voy ▁of ▁about ▁ 1 5 0 ▁sail . ▁It ▁was ▁attacked ▁by ▁a ▁Dutch ▁fr ig ate ▁from ▁V l iss ingen ▁of ▁ 2 2 ▁can