Migraine is known to run in families and has long been considered a strongly heritable disorder. We sought to investigate the age of onset of migraine between successive generations. Our retrospective cohort included 102 children with migraine who were referred to a pediatric headache clinic and their affected parent(s). Age at migraine onset was significantly lower in the children with a history of maternal or paternal migraine than in their mothers or fathers (P <.001). In conclusion, data on parental history of migraine showed that children with migraine were significantly younger at first appearance of the disease than their affected parents.