Second customary kingdom on Futuna Island (Wallis and Futuna); rival to Alo before the 1839 Vai War; still maintains a customary king (Tuisigave) today.
Regional history covering Wallis and Futuna and their kingdoms.
Broad survey covering Wallis and Futuna including the Kingdom of Sigave; confirmed via Amazon (ISBN 9781715305352).
A single-volume history of the island Pacific — broad context for this polity.