Y'Bent City of Thieves
Zeppelins were used by Selidor 1500 years ago, but fell into disuse at the end of the Brainburner-Selidor war.
They have been resurrected by Iuz. The Zeppelins are powered as per Spelljammer ships, or through Selidorian astral energy.
The Iuzians have sold several ‘prestige’ vessels to the Theocrats, and Y’Bent now has airship yards producing it’s own defence force (owned by Felix Rex).