Byzantine writer, well known for his prose and poetry, some of which is in the vernacular.

He wrote many occasional pieces for a widespread circle of patrons at the imperial court. Some of the work attributed to him is unpublished and some of it may be wrongly attributed to him. Even so, there does emerge from these writings the figure of an author in reduced circumstances, with a marked propensity for begging, who was in close touch with the court circles during the reigns of John II (1118–43) and Manuel I (1143–80). He was given a prebend by Manuel I, and he ended his life as a monk. Behind panegyric and conventional treatment his writings, often produced on the occasion of some public event, provide the historian with vital information on many aspects of contemporary history. There is a strongly satirical vein in his works, which range from epigrams and dialogues to letters and occasional pieces in both prose and verse. He had a biting sense of humour, and his comments are shrewd and pithy.