Otto the Great in the context of "Ottonian architecture"

The Holy Roman Emperor received the imperial regalia from the hands of the Pope, symbolizing both the pope's right to crown Christian sovereigns and also the emperor's role as protector of the Catholic Church. The Holy Roman Empresses were crowned as well.

The Holy Roman Empire was established in 962 under Otto the Great. Later emperors were crowned by the pope or other Catholic bishops. In 1530 Charles V became the last Holy Roman emperor to be crowned by a pope, Clement VII, albeit in Bologna (Frederick III was the last to be crowned in Rome). Thereafter, until the abolition of the empire in 1806, no further crownings by the pope were held. Later rulers simply proclaimed themselves Imperator Electus Romanorum ("Elected Emperor of the Romans") after their coronation as German king.
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The Ottonian dynasty (German: Ottonen) was a Saxon dynasty of German monarchs (919–1024), named after three of its kings and Holy Roman emperors, especially Otto the Great. It is also known as the Saxon dynasty after the family's origin in the German stem duchy of Saxony. The family itself is also sometimes known as the Liudolfings (Liudolfinger), after its earliest known member Count Liudolf (d. 866) and one of its most common given names. The Ottonian rulers were successors of Conrad I, who was the only German king to rule in East Francia after the Carolingian dynasty.

The Ottonians are associated with the notable military success that transformed the political situation in contemporary Western Europe: "It was the success of the Ottonians in molding the raw materials bequeathed to them into a formidable military machine that made possible the establishment of Germany as the preeminent kingdom in Europe from the tenth through the mid-thirteenth century." They are also associated with a notable cultural movement (especially new literary traditions) known as the Ottonian Renaissance.

Hugh the Great (c. 898 – 16 June 956) was the duke of the Franks and count of Paris. He was the most powerful magnate in France. Son of King Robert I of France, Hugh was Margrave of Neustria. He played an active role in bringing King Louis IV of France back from England in 936. Seeking an alliance with the Holy Roman Emperor Otto the Great, he married Otto's younger sister Hedwig of Saxony in 937. They were the parents of Hugh Capet. Hedwig's sister, Gerberga of Saxony, was Louis' wife. Although he often fought against Louis, he supported the accession of Louis and Gerberga's son, Lothair of France.

Matilda of Ringelheim (c. 892 – 14 March 968), also known as Saint Matilda, was a Saxon noblewoman who became queen of Germany. Her husband, Henry the Fowler, was the first king from the Ottonian dynasty, and their eldest son, Otto the Great, restored the Holy Roman Empire in 962. Matilda founded several spiritual institutions and women's convents. She was considered to be extremely pious, righteous and charitable. Matilda's two hagiographical biographies and The Deeds of the Saxons serve as authoritative sources about her life and work.

Adelaide of Italy (German: Adelheid; 931 – 16 December 999 AD), also called Adelaide of Burgundy, was Holy Roman Empress by marriage to Emperor Otto the Great. She was crowned with him by Pope John XII in Rome on 2 February 962. She was the first German queen more consistently designated as consors regni, denoting a "co-bearer of royalty" who shared power with her husband. She was essential as a model for future consorts regarding both status and political influence. She was regent of the Holy Roman Empire as the guardian of her grandson in 991–995.

Otto II (955 – 7 December 983), called the Red (German: der Rote), was Holy Roman Emperor from 973 until his death in 983. A member of the Ottonian dynasty, Otto II was the youngest and sole surviving son of Otto the Great and Adelaide of Italy.

Otto II was made joint-ruler of Germany in 961, at an early age, and his father named him co-Emperor in 967 to secure his succession to the throne. His father also arranged for Otto II to marry the Byzantine Princess Theophanu, who would be his wife until his death. When his father died after a 37-year reign, the eighteen-year-old Otto II became absolute ruler of the Holy Roman Empire in a peaceful succession. Otto II spent his reign continuing his father's policy of strengthening Imperial rule in Germany and extending the borders of the Empire deeper into Southern Italy. Otto II also continued the work of Otto I in subordinating the Catholic Church to Imperial control.