Thyrsus' relics were brought to Constantinople. His cult became popular in the Iberian Peninsula since the Middle Ages, initially known as Santo Tirso, remaining as that only in Portugal, as it changed to San Tirso in Spain.
Thyrsus' remains were transferred to Constantinople. His veneration grew in the Iberian Peninsula during the Middle Ages, initially known as Santo Tirso, remaining so only in Portugal, subsequently changing to San Tirso in Spain.