Archaeologists in Spain have discovered “one of the most lavish burials of the European early Bronze Age”: the grave of an elite woman wearing a silver diadem in what might be one of Western Europe’s first palaces. She might even have been a queen of sorts who ruled over the realm.

The woman’s remains were buried next to a man who was slightly older and died a few years earlier, the researchers found. But the man had far fewer and inferior goods in his grave, raising questions about which individual had more power and whether she was a ruler, according to the study, which was published online Thursday (March 11) in the journal Antiquity