Database: financial
Question: Name the account numbers of female clients who are oldest and have lowest average salary?
SQL: SELECT T3.account_id FROM client AS T1 INNER JOIN district AS T2 ON T1.district_id = T2.district_id INNER JOIN account AS T3 ON T2.district_id = T3.district_id INNER JOIN disp AS T4 ON T1.client_id = T4.client_id AND T4.account_id = T3.account_id  WHERE T1.gender = 'F' ORDER BY T1.birth_date ASC, T2.A11 ASC LIMIT 1