Alfonso X of Castile

MedievalEmperorHoly Roman Empire1221 — 1284

The Wise, also a claimant to the German throne.

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Quick Facts

Born

1221

Died

1284

Country

Holy Roman Empire

Era

Medieval

Occupation

Emperor

Score Overview

Military (10%)45

Political (20%)54

Influence (20%)65

Legacy (20%)40

Leadership (15%)65

Strategy (15%)60

Total Score54.6

Alfonso X of Castile — Complete Timeline

1252 AD

Commissioned the Alfonsine TablesCultural◆ Major

Alfonso X commissioned the Alfonsine Tables, a set of astronomical tables based on Ptolemaic models. These tables were used by European astronomers for centuries and became a standard reference in medieval science.

AstronomyScienceCultural Patronage

Impact: globalconstructive

1257 AD

Elected King of GermanyPolitical Action◆ Major

Alfonso X of Castile was elected King of Germany by a faction of prince-electors, opposing Richard of Cornwall. This election was part of the Great Interregnum, with Alfonso receiving support from the Hohenstaufen loyalists and the Papacy.

ElectionGreat InterregnumCastilian Claim

Impact: regional

Never Visited GermanyPolitical Action◆ Major

Alfonso X never traveled to Germany to assert his claim to the throne. His absence weakened his authority, and he was unable to secure effective control over the German kingdom, leaving the title contested.

AbsenceGreat InterregnumRival Claimant

Impact: regional

1275 AD

Renounced Claim to German ThronePolitical Action◆ Major

Alfonso X formally renounced his claim to the German throne in favor of Rudolf of Habsburg. This renunciation ended the Great Interregnum and allowed Rudolf to be recognized as the legitimate king of Germany.

RenunciationGreat InterregnumRudolf of Habsburg

Impact: regional