Viraraghava copper plates
Viraraghava copper plates, dated 1225 CE, of Cochin, or Kottayam plates of Viraraghava Chakravartin, or Syrian Christian copper plate, or Iravi Kortann's Plate, describe the concession made by the local king Viraraghava to Kerala Syrian Christian or Malankara Nasrani merchant Iravikorttan, the chief of Manikkiramam in Makotaiyar Pattinam.
Manigiramam, along with Anjuvannam and Ainurruvar, was one of major merchant guilds in medieval south India.
- Viraraghava is described as the descendant of certain Virakerala
- Iravikorttan is described as "the Great Merchant of the Chera/Kerala Land"
- The Four Temples are mentioned
- Witnesses mentioned
- * Panniyur and Chokiram
- * Venadu, Odanadu, Eranadu and Valluvanadu
- The scribe is named - Nampi Chateyan
