Dietrich of Metz was Bishop of Metz from 964 until his death. He was the son of Hedwig of Nordgau

Hedwig of Nordgau

Hedwig of Nordgau was the wife of Siegfried of Luxembourg, first count of Luxembourg and founder of the country. They were married circa 950. She was of Saxon origin but her parentage is not known for sure. Some sources list her as the daughter of count Eberhard IV of Nordgau and Luitgard of...

 and Siegfried of Luxembourg

Siegfried of Luxembourg

Siegfried is considered the first count of Luxembourg. He was actually count in the Moselgau and the Ardennes. He was also the advocate of the abbeys of Saint-Maximin de Trêves and Saint-Willibrod d'Echternach. He is speculated to be the son of Wigeric of Lotharingia, Count Palatine and Cunigunda...

.

He succeeded Adalbero I (929–962) as bishop of Metz. He founded the abbey of St Vincent, Metz.

He crowned Charles, Duke of Lower Lorraine

Charles, Duke of Lower Lorraine

Charles of Lorraine was the son of Louis IV of France and Gerberga of Saxony and younger brother of King Lothair. He was a sixth generation descendant of Charlemagne...

 as King of France in Laon

Laon

Laon is the capital city of the Aisne department in Picardy in northern France.-History:The hilly district of Laon, which rises a hundred metres above the otherwise flat Picardy plain, has always held strategic importance...

 in 978; Charles, unsuccessful in gaining recognition subsequently, was supported by Otto II, Holy Roman Emperor

Otto II, Holy Roman Emperor

Otto II , called the Red, was the third ruler of the Saxon or Ottonian dynasty, the son of Otto the Great and Adelaide of Italy.-Early years and co-ruler with Otto I:...

 (a Saxon like Dietrich, and a relation). Bruno I, Archbishop of Cologne

Bruno I, Archbishop of Cologne

Bruno the Great was Archbishop of Cologne, Germany, from 953 until his death, and Duke of Lotharingia from 954. He was the brother of Otto I, king of Germany and later Holy Roman Emperor....

 was another cousin, and a friend.

Sigebert of Gembloux

Sigebert of Gembloux

Sigebert of Gembloux was a medieval author, known mainly as a pro-Imperial historian of a universal chronicle, opposed to the expansive papacy of Gregory VII and Pascal II...

 and Alpert of Metz

Alpert of Metz

Alpert of Metz was a Benedictine chronicler of the eleventh century. His De diversitate temporum is a major source for the history of Western Europe in the period it covers, which is 990 to 1021...

wrote biographies of him.