Objective: To study whether pre-eclampsia and hypertension without proteinuria during pregnancy are associated with adaptive functioning, and psychiatric and psychological problems, of older offspring. Design: Retrospective longitudinal cohort study. Setting: Participants in the Helsinki Birth Cohort 1934–44 Study. Population: A cohort of 778 participants born after normotensive, pre-eclamptic, or hypertensive pregnancies, defined based on the mother's blood pressure and urinary protein measurements at maternity clinics and birth hospitals. Methods: Pearson's chi-squared tests and multivariable logistic regression. Main outcome measures: Achenbach System of Empirically Based Assessment Older Adult Self-Report scores, completed at age 69.3 years (SD 3.1 years). Results: Compared with offspring born after normotensive pregnancies, offspring born after pre-eclamptic pregnancies had increased odds of reporting total problems (aOR 4.00, 95%CI 1.64–9.77) and problems of particular concern to clinicians (critical items; aOR 5.28, 95%CI 1.87–14.96), as well as: anxious/depressed, functional impairment, memory, thought, and irritable/disinhibited problems on syndrome scales; depressive, somatic, and psychotic problems on Diagnostic and Statistical Manual of Mental Disorders scales; and adjustment problems in relationship satisfaction with spouse/partner. Maternal hypertension without proteinuria was not consistently associated with adjustment and problems (total problems, aOR 1.08, 95%CI 0.75–1.57; critical items, aOR 1.58, 95%CI 0.91–2.72). Conclusions: Maternal hypertensive disorders in pregnancy, during a period of expectant treatment, carry an increased risk of problems in adaptive functioning and mental wellbeing in the offspring seven decades later. Being the longest follow-up on transgenerational consequences of maternal hypertensive disorders reported thus far, our study points to the life-time increased risk of an adverse intrauterine environment.