From Tardis Wiki, the free Doctor Who reference

Cornucopia was the only city on a planet which was also called Cornucopia. (COMIC: Hunters of the Burning Stone) According to the Twelfth Doctor, it was home to a thousand different races. (COMIC: Matildus)


The city was ancient, and was "born" in a maze of stone called the Kaballus Quarter. The Renath Archive lay at the heart of the Kaballus Quarter. (COMIC: Matildus)

It was a thriving spaceport before it was hit by a rad-storm caused by a Ziggurat made from psychic metal which blocked every radio signal and sent the planet into poverty, which resulted in the Crime Lords rising to power led by Granny Solasta. (COMIC: The Cornucopia Caper)

At some point, MI6 began to monitor events on the planet through Annabel Lake, who was posing as Miss Ghost, a Toliakk under the employ of Solasta, and had moved there with her father. (COMIC: Hunters of the Burning Stone)

When the Eleventh Doctor, Amy Pond, and Rory Williams arrived, the Crime Lords forced him to take them onto the Ziggurat with his TARDIS. However, they fought over its riches, and ultimately they all perished aboard the ship. When the Doctor destroyed the Star of Solitude, the key, the Ziggurat exploded and the planet was finally freed. (COMIC: The Cornucopia Caper)

A year later, it was a thriving spaceport again. "Miss Ghost" was now in port authority, using her position to continue her investigation into psychic metal. The Hunters arrived in the city searching for the metal that the Ziggurat was made of. When they learned of its destruction they attacked, devastating the city and intending to destroy the planet. However, they were distracted by the arrival of Ian Chesterton and Barbara Wright and left. (COMIC: Hunters of the Burning Stone)

After destroying Josiah W. Dogbolter's empire, the Twelfth Doctor brought Maxwell Edison, Destrii, Sharon Allen, Izzy Sinclair, Majenta Pryce, and Frobisher to Cornucopia to celebrate Maxwell's birthday. (COMIC: The Stockbridge Showdown)