Gohan is the eldest son of Goku And Chi-Chi,the older brother of Goten,the husband of Videl,and father of Pan and Truncks.Gohan is the first hybrid(half Saiyan,half Human)He is named after Goku's adoptive grandfather Grandpa Gohan. By the time Krillin,Bulma,and Master Roshi get there Piccolo tells them that he is going to train Gohan for 1 whole year.Piccolo then takes Gohan with him to train in a far away desert but he leaves Gohan there for 6 months to train by himself.