(CNN) An eight-year-old girl has discovered a pre-Viking-era sword in a Swedish lake, prompting locals to name her the "Queen of Sweden."

Swedish-American Saga Vanecek found the ancient artifact while playing in Vidöstern lake during the summer near her family's holiday home in the south of the country.

Experts at a local museum estimate the sword to be around 1,500 years old, according to local reports.

"I was outside in the water, throwing sticks and stones and stuff to see how far they skip, and then I found some kind of stick," Vanecek told The Local, a Swedish news website

"I picked it up and was going to drop it back in the water, but it had a handle, and I saw that it was a little bit pointy at the end and all rusty. I held it up in the air and I said 'Daddy, I found a sword!' When he saw that it bent and was rusty, he came running up and took it," she continued.