An archaeologist at the Special Superintendency for Archaeology, Fine Art, and Landscape named Alessio de Cristofaro noted that the garden was found in the same area as the “Horti Agrippinae” was known to be. The Horti Agrippinae was the garden of Agrippina the Elder, who was Caligula’s mother.
Furthermore, the pipe closely resembles another one that was uncovered in the early 1900s. The earlier pipe was engraved with the name Iulia (Julia) Augusta. She was the second wife of Augustus and the grandmother of Germanicus.
It is believed that Germanicus inherited the garden. He later passed it down to his wife, Agrippina the Elder, and then it went to Caligula.
In addition to the pipe, there were slabs of pottery from the Roman era and terracotta figures from mythology that were used as decorations for rooftops.