John Shavliani of Abkhazia, a member of the House of Shavliani, was King of Abkhazia after George I, from 878/79 AD to 880.
References
John of Abkhazia Wikipedia(Text) CC BY-SA
John Shavliani of Abkhazia, a member of the House of Shavliani, was King of Abkhazia after George I, from 878/79 AD to 880.