At age twenty-three , PERSON@1 made his first voyage to the LOCATION@1 , sailing , in company with his second cousin , Sir PERSON@2 , on one of a fleet of ships owned by his relatives , the PERSON@3 family of LOCATION@2 .

Beginning around NUMBER@1 , he and his cousin , Sir PERSON@2 became the first MISC@1 to sell slaves from LOCATION@3 in the LOCATION@1 .
