It is not certain if this and the other inscriptions from Poço de Cortes were found in their original context. Certainly there are no news of a temple and a grove would have left little or no archaeological trace. However, the fact that funerary monuments and inscriptions were also found in the area and surrounding places (more on that in the next post) may indicate the existence of an ancient road or a junction point of several pathways, which would be a normal setting for tombs and ex-vota, as they could be seen and/or given offerings by travellers.
A Roman road is known to have existed between Olisipo and Scallabis (modern-day Santarém) and the discovery of a milestone in excavations at the House of Spikes (pink square on the map), in downtown Lisbon, may indicate the starting point of that pathway. The road would have followed more or less by the river, passing through modern-day Terreiro do Trigo (Wheat Square) and Santa Apolónia train station before bending inwards and following the Road of Chelas (Guardado da Silva 2008, 47-8), which is next to Poço de Cortes. Assuming it was found close to its original location, the ex-voto could therefore be standing by that same road or a branch of it.