The Sun and Moon allegory is used to depict a

medieval In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of World history (field), global history. It began with the fall of the West ...

political theory Political philosophy studies the theoretical and conceptual foundations of politics. It examines the nature, scope, and legitimacy of political institutions, such as states. This field investigates different forms of government, ranging from d ...

of hierocracy which submits the

secular Secularity, also the secular or secularness (from Latin , or or ), is the state of being unrelated or neutral in regards to religion. The origins of secularity can be traced to the Bible itself. The concept was fleshed out through Christian hi ...

power to the spiritual power, stating that the

Bishop of Rome The pope is the bishop of Rome and the visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff, or sovereign pontiff. From the 8th century until 1870, the pope was the sovereign or head of sta ...

is like the

Sun The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light a ...

, the only source of his own light, while the

Emperor The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...

is like the

Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...

, which merely reflects lights and has no value without the Sun. It was espoused by the

Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

Innocent III Pope Innocent III (; born Lotario dei Conti di Segni; 22 February 1161 – 16 July 1216) was head of the Catholic Church and ruler of the Papal States from 8 January 1198 until his death on 16 July 1216. Pope Innocent was one of the most power ...

and instantiated to some extent in medieval political practice. It was among the first ambitions of papal domination of Europe.

Description

Finding this imagery in the

Book of Genesis The Book of Genesis (from Greek language, Greek ; ; ) is the first book of the Hebrew Bible and the Christian Old Testament. Its Hebrew name is the same as its incipit, first word, (In the beginning (phrase), 'In the beginning'). Genesis purpor ...

, the Allegory images authentic spiritual authority as the Sun and any and all

civil Civil may refer to: *Civility, orderly behavior and politeness *Civic virtue, the cultivation of habits important for the success of a society *Civil (journalism) ''The Colorado Sun'' is an online news outlet based in Denver, Colorado. It lau ...

, or

political Politics () is the set of activities that are associated with decision-making, making decisions in social group, groups, or other forms of power (social and political), power relations among individuals, such as the distribution of Social sta ...

, authority as

the Moon The Moon is Earth's only natural satellite. It orbits around Earth at an average distance of (; about 30 times Earth's diameter). The Moon rotates, with a rotation period ( lunar day) that is synchronized to its orbital period ( lunar ...

. By doing so, it illustrates that the

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

Pope The pope is the bishop of Rome and the Head of the Church#Catholic Church, visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff, or sovereign pontiff. From the 8th century until 1870, the po ...

, as "Supreme Pontiff", "Vicar of Christ", et cetera, and therefore the supreme universal spiritual authority on Earth, is like the

that is the one source of light for itself and all other celestial bodies orbiting it; while the

Holy Roman Emperor The Holy Roman Emperor, originally and officially the Emperor of the Romans (disambiguation), Emperor of the Romans (; ) during the Middle Ages, and also known as the Roman-German Emperor since the early modern period (; ), was the ruler and h ...

, as symbolic and intended supreme civil, political, and secular authority on Earth, and having theoretically received his authority from and at the pleasure of the Pope, is like the Moon – that is, dependent upon the Sun for any illumination, merely reflects solar light, and ultimately has no light without the Sun. This theory dominated European

and

practice Practice or practise may refer to: Education and learning * Practice (learning method), a method of learning by repetition * Phantom practice, phenomenon in which a person's abilities continue to improve, even without practicing * Practice-based ...

in the 13th century. It is related to the general theory of

Papal supremacy Papal supremacy is the doctrine of the Catholic Church that the Pope, by reason of his office as Vicar of Christ, the visible source and foundation of the unity both of the bishops and of the whole company of the faithful, and as priest of the ...

and "plenitudo potestatis" as articulated by the

Roman Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

. In 1215, this concept was reflected in Canon 3 of the

Fourth Lateran Council The Fourth Council of the Lateran or Lateran IV was convoked by Pope Innocent III in April 1213 and opened at the Lateran Palace in Rome on 11 November 1215. Due to the great length of time between the council's convocation and its meeting, m ...

regarding heretics: While this theory of papal sovereignty in temporal as well as spiritual matters was, by the fourteenth century, generally rejected as out-of-date,Canning, Joseph
''The Political Thought of Baldus de Ubaldis''
Cambridge University Press, 2003, p.20. it entered into

canon law Canon law (from , , a 'straight measuring rod, ruler') is a set of ordinances and regulations made by ecclesiastical jurisdiction, ecclesiastical authority (church leadership) for the government of a Christian organization or church and its membe ...

and was reinforced by the Allegory of the Two Swords in the bull of

Pope Boniface VIII Pope Boniface VIII (; born Benedetto Caetani; – 11 October 1303) was head of the Catholic Church and ruler of the Papal States from 24 December 1294 until his death in 1303. The Caetani, Caetani family was of baronial origin with connections t ...

entitled .

Dante Alighieri Dante Alighieri (; most likely baptized Durante di Alighiero degli Alighieri; – September 14, 1321), widely known mononymously as Dante, was an Italian Italian poetry, poet, writer, and philosopher. His ''Divine Comedy'', originally called ...

argued contrarily to the Allegory of the Sun and Moon in his {{lang, la, De Monarchia. In this work, he explicitly rejects the allegory of the sun and the moon, and defends that the Emperor is the supreme authority on secular matters, while the Pope is the supreme authority in spiritual matters, none of them having precedence or supremacy over the other. For some time, the work was placed on the

Index Index (: indexes or indices) may refer to: Arts, entertainment, and media Fictional entities * Index (''A Certain Magical Index''), a character in the light novel series ''A Certain Magical Index'' * The Index, an item on the Halo Array in the ...

due to this heterodox conception of Catholic politics.

References

Bibliography

The Decretals of Pope Gregory 9.

Description

References

Bibliography

See also