Donnus was king of the Ligurian tribes

Ligures

The Ligures were an ancient people who gave their name to Liguria, a region of north-western Italy.-Classical sources:...

 inhabiting the mountainous region now known as the Cottian Alps

Cottian Alps

The Cottian Alps are a mountain range in the southwestern part of the Alps. They form the border between France and Italy...

 in the middle of the 1st century BC. Although initially an opponent of Julius Caesar

Julius Caesar

Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 during the latter's conquest of Gaul

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

, Donnus later made peace with Caesar. Donnus' son and successor, Cottius

Cottius

Marcus Julius Cottius was king of the Ligurian tribes inhabiting the mountainous region now known as the Cottian Alps early in the 1st century BC He was the son and successor of King Donnus, who had previously opposed but later made peace with Julius Caesar...

, initially maintained his independence in the face of Augustus' effort to subdue the various Alpine tribes, but afterwards submitted, and the family continued to rule the region as subjects of Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 until Nero annexed it as the province

Roman province

In Ancient Rome, a province was the basic, and, until the Tetrarchy , largest territorial and administrative unit of the empire's territorial possessions outside of Italy...

 of Alpes Cottiae

Alpes Cottiae

Alpes Cottiae was a province of the Roman Empire, one of three small provinces straddling the Alps between modern France and Italy. Its name survives in the modern Cottian Alps. In antiquity, the province's most important duty was the safeguarding of communications over the Alpine passes...

.

See also

• Alpes Cottiae
  Alpes Cottiae
  Alpes Cottiae was a province of the Roman Empire, one of three small provinces straddling the Alps between modern France and Italy. Its name survives in the modern Cottian Alps. In antiquity, the province's most important duty was the safeguarding of communications over the Alpine passes...
  
   (the original Roman province)
• Cottian Alps
  Cottian Alps
  The Cottian Alps are a mountain range in the southwestern part of the Alps. They form the border between France and Italy...
  
  
• Cottius
  Cottius
  Marcus Julius Cottius was king of the Ligurian tribes inhabiting the mountainous region now known as the Cottian Alps early in the 1st century BC He was the son and successor of King Donnus, who had previously opposed but later made peace with Julius Caesar...