This stone container discovered at the core foundation stone at a temple site in Neungsan-ri, Buyeo is known to have been used to enshrine a sarira reliquary. According to an inscription engraved on both sides of the container’s front face, the sarira was offered in the Jeonghae Year (567) by a Baekje princess who was also a sister of King Chang (r. 554-598). It was the king’s father, King Seong (r. 523-554), who moved the capital of Baekje from Ungjin (present-day Gongju) to Sabi (present-day Buyeo). Historians believe that the sarira shrine was placed upon the core foundation stone which was designed to support the core column of a sarira pagoda to be standing at the site. The sarira reliquary container features an upright rectangular body with rounded top and an opening made inside it in the same shape with arched top as that of the body. A ledge is made along the rim of the opening to receive the lid although there was neither the lid nor sacred relics when the container was excavated. Historians believe that the temple once standing at the Neungsan-ri Site was closely related with the nearby old graves which they conjecture to be royal tombs of Baekje. The discovery of the sarira container at the temple site where a Baekje princess made offerings suggests that the temple was built in memory of King Seong who had been tragically killed at the battlefield during a fight with the Baekje’s archrival Silla.