Who found ggantija?

Ggantija, a Neolithic temple complex on the Maltese island of Gozo, was discovered in the 19th century by the archaeologist Joseph H. W. F. de la Valette. Excavations began in 1827, revealing the site's significant historical and architectural importance. The temples, dating back to around 3600-3200 BCE, are among the oldest free-standing structures in the world and are part of Malta's UNESCO World Heritage Sites.