Which code established a uniform body of normative rules in Spain during the 13th century?

The Siete Partidas is the correct answer because it was a comprehensive code established in the 13th century, which aimed to create a unified legal framework in Spain. Commissioned by King Alfonso X of Castile, the Siete Partidas consists of seven parts addressing civil law, criminal law, and procedural law among others, thus providing a systematic approach to governance and legal issues during a time of political fragmentation.

This code played a crucial role in the development of Spanish law by consolidating various customs and legal traditions into one normative document, which significantly influenced Spanish jurisprudence and later legal systems. By providing clarity and consistency in legal matters, the Siete Partidas helped unify the diverse legal practices that existed across the different kingdoms of Spain at that time.

The other options represent different legal systems or codes that do not relate directly to the 13th-century context of Spain. The Justinian Code, for instance, pertains to Roman law and was established in the 6th century, while the Spanish Civil Code is a much later development from the 19th century that does not reflect the 13th-century legal landscape. Roman Law serves as the foundation for many legal systems but does not constitute a uniform code specifically created for Spain in the medieval