Alfonso VII of León and Castile
As early as 1271 Alfonso authorized a version, known as the "Royal" or "Primitive" version, which carried the history only down to the reign of Fernando I of Castile (reigned 1033–1065), with some rough drafts down to the time of Alfonso VII of León and Castile (reigned 1135–1157). A serious political crisis in 1272 —a rebellion by nobility hostile to Alfonso's imperial ambitions—postponed work for several months. The team of scholars continued working with less supervision from the king, producing the "Concise" or "Vulgar" version in 1274. These editions completed in the 1270s, already had the four-part structure.