Names beginning with I or J

Iaciodulma
Ibernio
Iberran
Iceni
Ικτιν/Mictim
Ιηνα estuary
Ιλα river mouth
Insenos
Intraum
Isca (etc)
Ισκαλις
Isurium
Ιτουνα
Ιτυος/Ειτυος
Itucodon
Iuctius
Iuliocenon
Iupania