If anyone is wondering, this event is the solemn crowning and public veneration of the reliquary bust of St. Agatha of Sicily, part of the celebrations for the 900th anniversary of the return of her relics to Catania in 1126.
In the video, we see Catholic clergy—including a cardinal in red vestments—handling a skull relic and placing a crown on the highly ornate, jewel-encrusted golden/silver bust of St. Agatha. This event occurred on August 17, in Catania, Sicily.
St. Agatha (3rd-century virgin martyr) is the patron saint of Catania. Her main feast is February 5, but there is also a summer observance (Sant’Agata d’Agosto) tied to the return of her relics from Constantinople on August 17, 1126.
The bust is a 14th-century silver (and later heavily jeweled) reliquary that houses her skull, part of her thorax, and other remains. It is a major object of devotion and is carried in processions during her feasts.
For the 900th anniversary (1126–2026), the relics were publicly displayed, and the skull was returned to the restored bust. Cardinal Pietro Parolin (Vatican Secretary of State, sent as papal legate by Pope Leo XIV) then solemnly crowned the bust on the cathedral square.
St Agatha is patroness of Catania, Italy, and there a major feast is held for her every February.