Bulgarian archaeologists discovered near the town of Rousse a stone with an engraved Latin inscription, once part of a defence wall.

The stone is in the region of Stulpishte near the Danube River, Darik Radio reported. The defence wall is part of the Trimamium castle, renovated by archaeologists. The urgent repair operations started a month ago. They were necessary because of the frequent raids of treasure-hunters.

The inscription comprises of six lines. It informs of the erection of a major temple or public building. The name of the legate in Lower Misia and the 'Severiana' cohort are also mentioned.

Severiana is the honorary name of the Roman emperor Sever Alexandre (222- 235 AD). The inscription proves for the first time the cohort took part in operations near the Trimamium castle. Now the stone is preserved in the regional museum of history.