Title: Pietro Paleologo Mastrogiovanni
Content:  George Sphrantzes, who described the life of Thomas Palaiologos in detail, wrote on the birth of Thomas' son Andreas Palaiologos on 17 January 1453 that the boy was "a continuator and heir" of the Palaiologan lineage, a phrase which makes little sense if Andreas was not Thomas' first-born son. From 2017 onwards, Mastrogiovanni's claims as titular emperor and Grand Master of the Constantinian Order of Saint George have been maintained by his son, Giovanni Angelo, self-styled as "Giovanni XIII Paleologo" or "Giovanni Angelo XIII Paleologo Mastrogiovanni". Giovanni Angelo heads the "Union of Byzantine Aristocracy", a group which also includes other Byzantine forgers, such as Maria Eugenia Láscaris, a granddaughter of the Spanish Byzantine forger-pretender Eugenio Lascorz.
Title: John Garidas
Content:  when the Bulgarians launched a surprise night attack on the Byzantine camp and routed the imperial army. Garidas and Leo Phokas barely escaped with a few troops, and sought refuge behind the city walls of Constantinople. In early 919, Constantine VII and the Patriarch of Constantinople Nicholas I Mystikos toppled Zoe as regent. As they feared a possible usurpation by Leo Phokas, they dismissed him from the Domesticate and appointed Garidas, by now a magistros, in his stead. Garidas agreed, on the condition that his son Symeon and his brother-in-law Theodore Zephinezer be appointed as joint commanders of the Hetaireia, 
Title: Andreas Palaiologos
Content:  Greek. Although hereditary succession had never been officially used in the Byzantine Empire, Andreas was recognized as the rightful heir by some of his contemporaries, most prominently Cardinal Bessarion. One of Thomas Palaiologos's advisors from Patras, George Sphrantzes, visited Andreas in 1466 and recognized him as "the successor and heir of the Palaiologan dynasty" and his rightful ruler. Outside of his aspirations of restoring his empire, Andreas's claim to be an emperor was mostly expressed through insisting on various honors, such as insisting that he be allowed to carry the same type of candle as the cardinals during a 1486 procession in the Sistine Chapel.
Title: George Palaiologos (megas hetaireiarches)
Content:  He died sometime between 1167 and 1170, when his successor, John Doukas, is attested as megas hetaireiarches. A letter by the archbishop and scholar Eustathius of Thessalonica to John Doukas, which mentions the latter as megas hetaireiarches, may be datable as early as 1168. This would place George Palaiologos's death in late 1167 or 1168. According to Leo Megistos, he fell ill at Adrianople while returning from an embassy to Hungary. The mission is not mentioned in other sources, but probably occurred after the Byzantine capture of Sirmium during Emperor Manuel's invasion of Hungary in 1167.
Title: Parakoimomenos
Content:  Vatatzes ((r. 1222 – 1254)), and the prōtovestiaritēs George Zagarommates, who was promoted to parakoimōmenos by Theodore II Laskaris ((r. 1254 – 1258)) but was soon disgraced. He eventually rose to panhypersebastos under Michael VIII Palaiologos ((r. 1259 – 1282)). An otherwise unidentified pansebastos and parakoimōmenos John also appears to belong to the middle of the 13th century. Michael VIII Palaiologos named a trusted agent of his, a defector from the Seljuk court named Basil Basilikos, to serve as parakoimōmenos of the koitōn during his early reign (1259–1261). After becoming sole emperor in 1261, Michael named John Makrenos to the 
Title: George Palaiologos (megas hetaireiarches)
Content:  George Palaiologos Doukas Komnenos (c. 1125–1167/68) was a high-ranking Byzantine aristocrat and diplomat of the 12th century. A kinsman of the ruling Komnenos dynasty, George Palaiologos held the rank of sebastos and the office of megas hetaireiarches. His son Alexios was briefly heir-apparent to Emperor Alexios III Angelos, and his great-grandson Michael VIII Palaiologos founded the Palaiologan dynasty of Byzantine emperors. He led a number of diplomatic missions for Emperor Manuel I Komnenos, both within the Empire and abroad. Only his missions to Jerusalem and Hungary, as part of the emperor's marriage alliances with foreign rulers, are well attested. Apart from his diplomatic activities, George Palaiologos also founded a church and a monastery, which were lavishly decorated.
Title: John Palaiologos (Caesar)
Content:  John Palaiologos (Ἱωάννης Παλαιολόγος; 1288/89–1326) was a member of the reigning Palaiologos dynasty of the Byzantine Empire, who served as governor of Thessalonica.
Title: John Garidas
Content:  held the senior rank of patrikios. In 914, he was named to the post of hetaireiarches by the Empress-dowager and regent Zoe Karbonopsina after his predecessor, Theophylact Dominikos, was also involved in a plot to seize the throne. In fall/winter 917, still as hetaireiarches, Garidas took part in the campaign against the Bulgarians under the Domestic of the Schools Leo Phokas the Elder. Leo Phokas had already suffered a heavy defeat at the Battle of Acheloos, in whose aftermath the Bulgarians had invaded Byzantine lands in Thrace. The campaign ended in yet another heavy Byzantine defeat at the Battle of 
Title: George Palaiologos (megas hetaireiarches)
Content:  George Palaiologos was survived by his wife and several children, as well as by some of his siblings, of whom only the name of a brother, the sebastos Constantine, is known. The identity of George Palaiologos' wife is not known, but they probably married around 1145. The couple had at least three children, as two sons and a daughter are mentioned. Only one of his sons, Alexios, is known by name; he eventually became despot and heir-apparent to Emperor Alexios III Angelos ((r. 1195 – 1203)) before his death in early 1203. Alexios' daughter Theodora married the megas domestikos (commander-in-chief) Andronikos Palaiologos. They had numerous children, the most prominent of whom was Michael VIII Palaiologos, who became emperor of Nicaea in 1259 and restored the Byzantine Empire in 1261, founding the Palaiologan dynasty. The Greek scholar Konstantinos Varzos suggests that George's second son may have been the protosebastohypertatos Andronikos Palaiologos Doukas Komnenos, a relative of Isaac II Angelos.
Title: Palaiologos
Content:  successor, Theodore II Laskaris, recalled Michael in 1258 and after they had exchanged guarantees of safety and oaths of loyalty, Michael returned to service within the empire. Theodore II died in that same year and was succeeded by his eight-year-old son John IV Laskaris. Just a few days after Theodore's death, Michael led a coup against the bureaucrat George Mouzalon, who had been appointed regent by Theodore II. Michael seized the guardianship of the child emperor and was invested with the titles of megas doux and despotes. On 1 January 1259, Michael was proclaimed as co-emperor at Nymphaion, probably 

Question: Verify the following claims with "True" or "False": I read that Giorgos Balogiannis had a successor.
Answer: False