BADEN-WURTTEMBERG, GERMANY—Archaeologists have been painstakingly excavating the 2,600-year-old grave of a Celtic woman and child that was discovered in 2010 and removed from the ground in a large block. The burial chamber had been fitted with oak beams that were preserved by water from a nearby stream. Artifacts recovered so far from the tomb include gold and amber jewelry and objects made of bronze and jet, in addition to organic materials. “We call her a princess, but we actually know very little about the social organization of the time because we don’t have any written sources,” explained Nicole Ebinger-Rist, director of the project. She hopes to identify the woman as the research progresses.