historians, following the 19th-century scholar Karl Hopf, erroneously held that John Doukas died in 1296. It has since been established that he died in or shortly before March 1289. He was buried in the monastery of Porta Panagia, which he had founded in 1283. His tomb lies in the south side of the katholikon, and a fresco above his tomb shows him "as a monk being presented by an angel to the enthroned Virgin". After his death, his widow was compelled to recognize the suzerainty of Andronikos II Palaiologos to safeguard the position of her underage sons Constantine and Theodore. Just as when John himself had done so in the past, however, this suzerainty was purely nominal. Family By his wife, who is only known by her monastic name Hypomone ("Patience"), John had several children, including: Michael Komnenos, who died as prisoner in Constantinople in 1307. Constantine Doukas (died 1303), who succeeded as ruler of Thessaly. He married Anna Euagionissa, and had at least one son, John II Doukas (died 1318), ruler of Thessaly. Theodore Angelos (died ), co-ruler of Thessaly alongside Constantine. Helena Angelina Komnene, who married firstly William I de la Roche, Duke of Athens, and secondly Hugh de Brienne, Count of Lecce. unidentified daughter, who married Andronikos Tarchaneiotes, a nephew of Emperor Michael VIII Palaiologos. unidentified daughter, possibly named Helena, who married King Stefan Uroš II Milutin of Serbia. unidentified daughter, betrothed to the future Emperor Theodore Svetoslav of Bulgaria. Notes References Sources Further reading 1289 deaths 13th-century births 13th-century Byzantine people 13th-century rulers in Europe Founders of Christian monasteries Illegitimate children of despots of Epirus Komnenodoukas dynasty Medieval rulers of Thessaly Eastern Orthodox monarchs Sebastokrators Ypati Year of birth unknown