Ruy González de Clavijo (died 2 April 1412) was a Castilian traveler and writer. In 1403–05 Clavijo was the ambassador of Henry III of Castile to the court of Timur, founder and ruler of the Timurid Empire. A diary of the journey, perhaps based on detailed notes kept while traveling, was later published in Spanish in 1582 (Embajada a Tamorlán) and in English in 1859 (Narrative of the Embassy of Ruy Gonzalez de Clavijo to the Court of Timour at Samarcand AD 1403–6). Source: Wikipedia (en)