In 321 BC, the Roman army was deceived into thinking Lucera was under siege by the Samnites. Hurrying to relieve their allies the army walked into an ambush and were defeated at the famous Battle of the Caudine Forks. The Samnites occupied Lucera but were thrown out after a revolt. The city sought Roman protection and in 320 BC was granted the status of Colonia Togata, which meant it was ruled by the Roman Senate. In order to strengthen the ties between the two cities, 2,500 Romans moved to Lucera. From then on, Lucera was known as a steadfast supporter of Rome.