The food served at the emperor's table was very frugal and John lectured courtiers who lived in excessive luxury. His speech was dignified, but he engaged in repartee on occasion. All accounts agree that he was a faithful husband to his wife, an unusual trait in a Medieval ruler. Despite his personal austerity, John had a high conception of the imperial role and would appear in full ceremonial splendour when this was advantageous. John was famed for his piety and his remarkably mild and just reign. He is an exceptional example of a moral ruler, at a time when cruelty was the norm. He is reputed never to have condemned anyone to death or mutilation. Charity was dispensed lavishly. For this reason, he has been called the Byzantine Marcus Aurelius. By the example of his personal morality and piety he effected a notable improvement in the manners of his age. Descriptions of him and his actions indicate that he had great self-control and personal courage, and was an excellent strategist and general. John II succeeded his father as ruling "basileus" in 1118, but had already been crowned co-emperor by Alexios I between 1 September and early November, 1092. Despite this coronation, the accession of John was contested. That Alexios I favoured John to succeed him is made obvious by the elevation of his son to the position of co-emperor. However, Alexios' influential wife, Irene, favoured the "Caesar" Nikephoros Bryennios, the husband of her eldest child Anna Komnene. Anna, who in infancy had been betrothed to her father's first co-emperor Constantine Doukas, herself harboured obvious aspirations to power and the throne. During Alexios' final illness both wife and daughter exploited his physical weakness to apply pressure on him in support of their agenda for the succession. Alexios endured these constant demands without formally changing his intended successor. As Alexios lay dying in the monastery of the Mangana on 15 August 1118, John, relying on trusted relatives, especially his brother the "sebastokratōr" Isaac Komnenos, gained entry into the monastery and obtained the imperial signet ring from his father. He then assembled his armed followers and rode to the Great Palace, gathering the support of the citizenry on the way. The palace guard at first refused to admit John without clear proof of his father's wishes, however, the mob surrounding the new emperor simply forced an entry.