The location of Kaloyan's grave is unknown. According to the late 13th-century version of the "Life of Saint Sava of Serbia", Kaloyan's body was embalmed and delivered to Tarnovo. However, the older version of the same legend, recorded in 1254, does not mention this episode. A golden ring, which was found in a grave near the Church of the Holy Forty Martyrs in Tarnovo in 1972, bears the Cyrillic inscription "Kaloianov prăsten" ("Kaloyan's ring"). Historian Ivan Dujčev stated that the ring proved that Kaloyan's remains were transferred to the church, which was built in 1230. Based on the skull found in the same grave and associated with Kaloyan, anthropologist Jordan Jordanov reconstructed Kaloyan's face. The identification of the grave as Kaloyan's burial place is controversial, because the ring bearing his name cannot be dated to before the 14th century. Furthermore, the graves of all other royals who were buried in the same place are located within the church, suggesting that the ring was not owned by Kaloyan, but by one of his 14th-century namesakes.