Researchers have determined that a recently discovered photograph could be a picture of the wife of famous samurai Sakamoto Ryoma:

The National Research Institute of Police Science compared the photograph, owned by Naomi Izakura, to the only photograph that has been confirmed to be that of Ryo (1841-1906), wife of Sakamoto, a leader of the movement to overthrow the Tokugawa shogunate, when she was about 60 years old. She is popularly known as Oryo.

The institute concluded it was possible the woman, who looks about 30, was a young Oryo, the Sakamoto Ryoma Memorial Museum announced Thursday.

In 2001, Teiichi Miyakawa, chief of the Kyoto National Museum’s Archaeology Department, found the photograph of the woman seated in a chair in a book of photographs of leading figures in the last days of the Tokugawa shogunate.

Oryo was ranked 62nd in a 2006 survey of Japanese people’s favorite female historical figures. Her husband was ranked first and second in some other rankings.