Malone's idea attracted little attention for decades, but it was revived in the 1970s as part of a theory known as the "Sarmatian connection". In a 1975 essay, Helmut Nickel suggested that Artorius was the original Arthur, and that a group of Sarmatian cavalry serving under him in Britain inspired the Knights of the Round Table. Nickel wrote that Castus' Sarmatian unit fought under a red dragon banner and that their descendants were still in Britain in the 5th century; he also identified similarities between the Arthurian legend and traditions associated with the Sarmatians and other peoples of the Caucasus region. He suggested that the Sarmatians' descendants kept Castus' legacy alive over the centuries and mixed it with their ancestral myths involving magical cauldrons and swords.