Rungholt

Rungholt was flooded, with massive erosion, when a storm tide (known as Grote Mandrenke or Den Store Manddrukning) hit the coast on 15 or 16 January 1362.

[1][2] Rungholt was situated on the island of Strand, which was largely destroyed by the Burchardi Flood of 1634; remaining fragments include the Nordstrand peninsula and the islets of Hallig Südfall, Pellworm and Nordstrandischmoor, while the rest now forms tidal flats in the surrounding Wadden Sea.

They completely changed the landscape," ... "Once you remove all this peat and get the water out, you have very, very rich soils that are perfect for agriculture [but] "with rising sea levels and increasing storminess, one day these dikes they built were not sufficient enough, and these settlements just drowned.

"[6]Sometimes referred to as the "Atlantis of the North Sea", the Rungholt of legend was a large, rich town, with the catastrophe supposedly a divine punishment for the sins of its inhabitants.

In the Interlude before the final act, the main character, Lotte, tries desperately to warn the citizens of Rungholt of their impending destruction by reciting verses from Liliencron’s ballad.

[citation needed] German band Santiano released a song called "Rungholt" in their 2015 CD "Von Liebe, Tod und Freiheit".