Kashyapa killed his own father. That’s where this starts. In 477 CE, he overthrew King Dhatusena of Sri Lanka — had him sealed alive inside a wall — and took the throne. But his half-brother Moggallana, the rightful heir, escaped that same night. A teenage prince running through darkness toward South India. Kashyapa knew he’d come back. So he built a palace on top of a 200-meter rock in the middle of the jungle. A fortress no army could reach.

The place
Sigiriya
The King's Downfall
After eighteen years in his sky fortress, the king who murdered his father rode down to face his brother’s army — and in one terrible moment, lost everything
Moral of the Story
“Kashyapa built his fortress to outrun what he’d done. But the walls weren’t what failed him — it was the crime itself. An army that serves a man who murdered his own father is an army waiting to leave. And in his final moment, when he cut his throat and sheathed the dagger, Kashyapa proved the only thing he ever truly ruled was himself.”
Characters
Source
Culavamsa, chapters 38-39 (Geiger translation, 1929); De Silva, K.M. A History of Sri Lanka, 1981; Bandaranayake, Senake. Sigiriya: City, Palace and Royal Gardens, 2005; Gunawardana, R.A.L.H. Robe and Plough: Monasticism and Economic Interest in Early Medieval Sri Lanka, 1979; UNESCO World Heritage Nomination File 202