In 1992 a bomb exploded in the City of London along St. Mary Axe, destroying the Baltic Exchange, a historic trading center for the maritime markets. In 1995, as the site was being cleared for new construction, an archeological investigation discovered the remains of a young girl estimated to be 1,600 years old, from a time when the City of London was the Roman settlement of Londinium.

The girl’s remains were carefully removed to the Museum of London, where she bided her time as redevelopment plans for the site struggled through fits and starts. It took another nine years, but finally 30 St. Mary Axe opened in 2004, quickly earning the nickname “the Gherkin.”

For three more years, the girl waited patiently at the museum until April of 2007 when she was returned to her Londinium resting place. Rather than have her languish in a dusty storeroom, the developers of the Gherkin requested that she be reburied on site, and there was a service at St. Botolphs Church in Aldgate. A procession through the city streets followed, and a celebration with musicians approximating ancient Roman tunes. The Lord Mayoress of the City of London was there to spread rose petals on the gravesite, marked with a marble slab decorated with a laurel wreath.

There was a dedication of a simple memorial set into the marble benches along Bury Street. The inscription reads, in both English and Latin: “To the spirits of the dead / the unknown young girl / from Roman London / lies buried here.”

She was a teenager at the time she died, somewhere between 13 and 17 years old. With the benefit of carbon dating and identifying some sherds of pottery at the site, it’s estimated that she died sometime between 350 and 400 AD.

There is no way to know who she was—whether she was Roman, a Briton, or someone from the empire’s fringes. But every day the workers in London’s financial district rush and hustle past one of the city’s earliest inhabitants, memorialized by some of the city’s latest.