Christopher or Christophoros Burgaris was the short-tenured successor of the famous Basil Boiannes as catepan of Italy. The chronicler Lupus Protospatharius

Lupus Protospatharius

Lupus Protospatharius Barensis was the reputed author of the Chronicon rerum in regno Neapolitano gestarum , a precise history of the Mezzogiorno from 805 to 1102. He has only been named as the author since the seventeenth century...

 gives the date of Boiannes' departure as 1029, but modern historian Ferdinand Chalandon corrects this to 1027. This synchronises with the death of Guaimar III of Salerno

Guaimar III of Salerno

Guaimar III was duke of Salerno from around 994 to his death. His date of death is sometimes given as 1030 or 1031, but the most reliable sources consistently indicate 1027. Under his reign, Salerno entered an era of great splendour...

, though other events associated with it are known to have occurred in 1028. Lupus, however, misplaces the election of Byzantius

Byzantius, Archbishop of Bari

Byzantius was the archbishop of Bari in the early eleventh century. He began the construction of the new cathedral, which was continued by his successors....

 as archbishop of Bari, which occurred before 1025, in this year and therefore his whole chronology for the period seems to be in error, in our manuscripts at least. Christophoros saw the recommencement of the Saracen

Saracen

Saracen was a term used by the ancient Romans to refer to a people who lived in desert areas in and around the Roman province of Arabia, and who were distinguished from Arabs. In Europe during the Middle Ages the term was expanded to include Arabs, and then all who professed the religion of Islam...

 incursions. In 1027, Obbiano capitulated and Bari

Bari

Bari is the capital city of the province of Bari and of the Apulia region, on the Adriatic Sea, in Italy. It is the second most important economic centre of mainland Southern Italy after Naples, and is well known as a port and university city, as well as the city of Saint Nicholas...

 had to repel and assault. Christophoros was out of power by 1029. He was replaced by Pothos, under whom the Saracen attacks continued.

Source

• Chalandon, Ferdinand
  Ferdinand Chalandon
  Ferdinand Chalandon was a French medievalist and Byzantinist.Chalandon’s work remains the most substantial study of the Normans in Italy and though the details of what he wrote a hundred years ago have in places been modified, it remains the single most important work available to historians.Being...
  
  . Histoire de la domination normande en Italie et en Sicile. Paris
  Paris
  Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...
  
  , 1907.