Cohors Tertiae Lingonum

This cohort is known in Britain only from military discharge certificates or diplomata  for the years 103 to 178 AD. The first evidence of unity in Britannia is based on a diploma dated 103. The diploma lists the cohort as part of the troops (see Roman forces in Britannia ) that were stationed in the province. Additional diplomas dated 122 to 178 attest to unity in the same province.

What does the name Cohors Tertiae Lingonum mean?

  • Cohors : The cohort was an auxiliary infantry unit in the Roman army .
  • Tertiae : The Roman numeral stands for the ordinal number third ( Latin tertia ). Therefore, the name of this military unit is pronounced as Cohors tertia ..
  • Lingonum : the Lingones . When the unit was formed, the soldiers in the cohort were recruited from the Lingone people in the territory of the Roman province of Gallia Belgica .
  • equitata : partially mounted. The unit was a mixed unit of infantry and cavalry. The addition appears in an inscription.
  • Since there is no evidence of the addition of milliaria (1000 men) to the name, the unit was a Cohors quingenaria equitata . The target strength of the cohort was 600 men (480 infantry and 120 cavalry), consisting of 6 Centuries of infantry with 80 men each and 4 Turmae of cavalry with 30 cavalry each.

Evidence for the presence of Cohors Tertiae Lingonum in Britain

  1. Military Diplomata 122AD
  2. Military Diplomata c AD126