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Who was alive in 400?

268 well-known people were alive in 400, including Augustine of Hippo, Hypatia, Jerome. Here are the 80 most notable:

• Augustine of Hippo (354–430) — Christian theologian, philosopher, and saint (354–430)
• Hypatia (360–415) — Greek Neoplatonist philosopher
• Jerome (345–420) — 4th and 5th-century Catholic and Eastern Orthodox saint and Doctor of the Church
• John Chrysostom (349–407) — Church Father, Archbishop of Constantinople and Christian saint (c. 347–407)
• Leo I (400–461) — Pope from 440 to 461 (390–461)
• Alaric I (400–410) — King of the Visigoths
• Innocent I (400–417) — early medieval pope (???-417)
• Celestine I (400–432) — pope
• Sixtus III (390–440) — Pope and bishop of Rome from 432 to 440
• Zosimus (400–418) — pope
• Boniface I (370–422) — pope
• Honorius (384–423) — 4th and 5th-century Roman emperor
• Anastasius I (340–401) — pope
• Saint Patrick (400–500) — 5th-century Romano-British Christian missionary and bishop in Ireland
• Arcadius (377–408) — Roman Emperor from 395–408 (377-408)
• Cyril of Alexandria (376–444) — Patriarchate of Alexandria from 412 to 444
• Mesrop Mashtots (362–440) — Armenian theologian and linguist (362–440)
• Nestorius (380–451) — Christian theologian (c. 386–c. 451)
• Geiseric (389–477) — King of the Vandals and Alans
• Aëtius (390–454) — Roman general and statesman ( c. 390 – 454)
• Agnes of Rome (300–400) — Christian martyr
• Marcian (392–457) — Eastern Roman (Byzantine) emperor (390-457)
• Claudian (370–404) — 5th century Roman Latin poet
• Avitus (395–457) — Roman Emperor (455–456) (395-457)
• Petronius Maximus (396–455) — 5th century western Roman emperor (396-455)
• Constantius III (370–421) — Western Roman Emperor (370-421)
• Vegetius (400–450) — writer of the Later Roman Empire
• Theodoric I (393–451) — King of the Visigoths
• Stilicho (359–408) — Roman army general (c.359 – 408)
• Epiphanius of Salamis (315–403) — 4th century Christian bishop and saint
• Faxian (337–422) — Chinese Buddhist monk (bhikkhu), pilgrim to India, and travelogue author during the Jin and Liu Song dynasties
• Orosius (385–418) — Roman historian and theologian (c.375/385 – c.420 AD)
• Kumārajīva (344–413) — Kuchan Buddhist monk and translator (344-413)
• Pelagius (354–420) — 4th-century theologian, namesake of Pelagianism
• Ataulf (400–415) — King of the Visigoths
• Tao Yuanming (365–427) — Chinese poet (365–427)
• Socrates of Constantinople (380–440) — 5th century Greek Christian church historian
• Galla Placidia (386–450) — 4th-century Roman Empress
• Constantine III (400–411) — Western Roman Emperor from 407 to 411
• Prudentius (348–405) — Roman writer
• Macrobius (370–430) — ancient Roman author (5th century)
• Theodoret (393–450) — 5th century Byzantine theologian and bishop
• Yazdegerd I (400–421) — The 14th Sassanid Emperor (399–420)
• John Cassian (360–435) — Christian monk and theologian
• Chlodio (393–448) — Germanic king
• Pulcheria (399–453) — Byzantine empress, wife of Marcian
• Chandragupta II (400–500) — Ruler of Gupta Empire from c. 375 to c. 415
• Joannes (400–425) — Roman usurper (423–425) against Valentinian III
• Synesius of Cyrene (370–413) — Greek bishop of Ptolemais
• Simeon Stylites (389–459) — Christian ascetic saint
• Sozomen (400–447) — Byzantine historian
• Mary of Egypt (344–421) — Egyptian hermit and female Christian saint
• Martianus Capella (360–428) — Latin prose writer of Late Antiquity
• Sigeric (370–415) — King of the Visigoth
• Fritigern (378–400) — Gothic King
• Peter Chrysologus (380–450) — Bishop of Ravenna
• Felix II (365–400) — archdeacon of Rome, antipope or pope in 355 (died 365)
• Shapur III (388–400) — The 12th Sasanian emperor (383–388)
• Saint Ursula (385–400) — Frankish saint
• Sulpicius Severus (360–420) — Christian writer and historian and native of Aquitania (c. 363 – c. 425)
• Theon of Alexandria (335–400) — ancient Greek scholar
• Quintus Aurelius Symmachus (345–402) — consul of the Roman Empire 391, orator (340-402)
• Bahram IV (399–400) — The 13th Sassanid Emperor (388–399)
• Aelia Eudoxia (301–404) — Empress consort of the Byzantine Emperor Arcadius
• Richū (336–405) — Japanese emperor
• Emperor Hanzei (336–410) — Emperor of Japan
• Eunapius (349–420) — ancient Greek sophist and historian
• Aspar (400–471) — Imperial Roman Consul (400-471)
• Tyrannius Rufinus (345–411) — monk, historian, and theologian
• Ursicinus (384–400) — priest, elected pope in 366/367
• Kumaragupta I (399–455) — Gupta Emperor (399-455)
• Paulinus of Nola (354–431) — Christian bishop and saint
• Pharamond (370–430) — legendary early king of the Franks (365-430)
• Gwanggaeto the Great (374–413) — King of the Goguryeo dynasty of Korea (374–413) (r. 391–413)
• Theodore of Mopsuestia (350–428) — christian theologian
• Godigisel (359–407) — King of the Hasdingi Vandals (359-406)
• Ingyō (376–453) — 19th Emperor of Japan
• Gunderic (379–428) — Vandal king (379-428)
• Frumentius (383–400) — Bishop of Aksum
• Quintus Smyrnaeus (400–400) — 4th-century Greek poet

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