a, Location of the La Braña-Arintero site (Spain). b, The La Braña 1 skeleton as discovered in 2006. c, Principal Component Analysis (PCA) based on the average of the Procustes transformations of individual PCAs with La Barña and each of the five Neolithic samples1,3. The reference populations are the Finnish HapMap, FINHM, and POPRES. Population labels with labeling of 12 with the addition of FI (Finns) or LFI (Late-settlement Finns). Ajv70, Ajv52, Ire8 and Gok4 are Scandinavian Neolithic hunter-gatherers and a farmer, respectively3. Ötzi is the Tyrolean Ice Man1.