Columbia subject headings:
Emperors--Rome--Biography.
Rome--History--Severus Alexander, 222-235.
Severus Alexander, Emperor of Rome, 208-235.
Vita Alexandri Severi.
Harvard subject headings:
Scriptores historiae Augustae.
Severus Alexander, Emperor of Rome, 208-235.
Princeton subject headings:
Emperors--Rome--Biography.
Rome--History--Severus Alexander, 222-235.
Severus Alexander, Emperor of Rome, 208-235.
Vita Alexandri Severi.