The Regency Act 1728 made Caroline rather than Frederick regent when her husband was in Hanover for five months from May 1729.

In mid-1735, Frederick, Prince of Wales, was further dismayed when Caroline, rather than himself, again acted as regent while the King was absent in Hanover.

The Act specified that Queen Caroline would act as regent in the absence of her husband King George II.

Only Gallus Anonymus mentions the then Prince on occasion of the description of his father's trip to Rus in 1018: " due to the fact that his son (...) Mieszko wasn't considered yet capable of taking the government by himself, he established a regent among his family during his trip to Rus ".

On the death of Henry VII, the Countess was declared to be regent for her grandson, Henry VIII, who was considered too young to rule on his own.

The Roman Senate still kept Demetrius, son of Seleucus IV and the rightful heir to the throne, as hostage, refusing to release him because they considered it better to have Syria nominally ruled by a boy and his regent than the 22-year-old Demetrius.

Raymond's son Bertrand, considered illegitimate by the society, left Toulouse after acting as regent for a decade and arrived in the Holy Land with a substantial army and a large Genoese fleet.

In practice, many Chinese Empress Dowagers, either as official regent for a sovereign who was still a minor in age or from the influence of position within family social ranks, wielded great power or is historically considered to have been the effective wielder of supreme power in China, as in the case of Empress Dowager Cixi, Regent of China considered de facto sovereign of China for 47 years during CE 1861-1908.

He therefore also chose a potential regent in Huo Guang, whom he considered to be capable and faithful.

As Emperor Wu grew ill in 289, he considered whom to make regent.

He did, however, sign a decree of 30 October, stating that his eldest brother Louis-Stanislaus-Xavier was required to return to France in two months, or at the expiration of that period he would be considered to have forfeited his rights as regent.

In 289, as Emperor Wu neared death, he considered whom to make the regent for Crown Prince Zhong.

The Ottoman sultan, pâdişâh or " lord of kings ", served as the empire's sole regent and was considered to be the embodiment of its government, though he did not always exercise complete control.

In such times the Virgin Mary would be considered a formal monarch of Hungary, but this avenue was not pursued due to regent Horthy's Protestant faith.

William originally considered himself only his brother's regent, but after a year declared himself ruling duke.

She had originally been chosen by her grandmother, Aliénor, to marry the French heir, considered a more suitable a Queen of the Franks than her sister Urraca ; as regent, she proved this to be so, being associated in the Kingship not only during her son's minority, but even after he came into his own.

After the rebellion started, Emperor Xuanzong briefly considered making Li Heng regent, but at the pleas of Consort Yang and her three sisters ( who were fearful that Li Heng would act against them if he had regent powers ), did not actually do so.

The closest heir who was undoubtedly Portuguese was Constança Berquó de Mendonça, 4th Duchess of Loulé ( a great-great-granddaughter of King John VI ), but her branch of the family put forth no claim at that time, nor King Manuel II ever considered it, and many scholars claim the Loulé lost their rights to the throne since the marriage ( secret ) of the Infanta Ana de Jesus with the Marquis of Loulé had not been authorized by the competent authority, the Cortes, nor either by the Regency Committee, although it had been autohorized by the regent Infanta.

Succeeded his father Lý Thánh Tông at the age of only 7, during the early years Lý Nhân Tông reigned with the assistance of his mother the Empress Mother Ỷ Lan and the chancellor Lý Đạo Thành who were both considered competent regent and able to help the emperor to keep the prosperity of the country.

He sent it with a Danish-speaking officer, Captain Sir Frederick Thesiger, under a flag of truce to the Dano-Norwegian regent, Crown Prince Frederik, who had been watching the battle from the ramparts of the Citadel.

Its broadcast immediately followed that of Zeta Gundam and continues to follow a major plotline from Zeta involving Haman Karn, regent to Mineva Lao Zabi, and also continues to follow Captain Bright Noa and the ship, Argama, as well as introducing the new characters led by Judau Ashta.

While he had been away in the Holy Land, even his regent, Archbishop John of Esztergom had been obliged to leave the country and his treasury had been exhausted.

After George Frederick's death in 1603, the Polish king Zygmunt Waza appointed Joachim Frederick as regent in 1605, and permitted his son, John Sigismund, to succeed him in 1611.

Henry V's brother, John of Lancaster, 1st Duke of Bedford, acted as regent.

John exploited this unpopularity to set himself up as an alternative ruler with his own royal court, complete with his own justiciar, chancellor and other royal posts, and was happy to be portrayed as an alternative regent, and possibly the next king.

Isabella's half-brother John of Ibelin, the Old Lord of Beirut governed as regent until 1210 when Maria married an experienced French knight, John of Brienne.

Maria died in childbirth in 1212, and John of Brienne continued to rule as regent for their daughter Isabella II.

The High Court of Cyprus had elected John of Ibelin as regent, but Henry's mother Alice of Champagne wished to appoint one of her supporters ; Alice and her party, members or supporters of the Lusignan dynasty, sided with Frederick, whose father had crowned Amalric of Lusignan king in 1197.

In the midst of these events, Alice of Champagne had died in 1246 and had been replaced as regent by her son King Henry I of Cyprus, for whom John of Jaffa served as bailli in Acre.

In the first, the regent John Kantakouzenos married his daughter Theodora to Orhan and employed Ottoman warriors against the rival forces of the queen dowager, allowing them to loot Thrace.

* June 20 – John of Lancaster, 1st Duke of Bedford, regent of England ( d. 1435 )

** John of Lancaster, Duke of Bedford, son of Henry IV of England, regent of England ( d. 1435 )

* Baldwin II becomes emperor of the Latin Empire in Constantinople, with John of Brienne as regent.

On 16 October 1551, John Dudley, 1st Duke of Northumberland, overthrew the Duke of Somerset to become the new regent of the young King.

* September 14 – John of Lancaster, 1st Duke of Bedford, regent of England ( b. 1389 )

* October 18 or 19 – John, King of England, dies at Newark Castle, Nottinghamshire ; he is succeeded by his nine-year-old son Henry, with William Marshal, Earl of Pembroke, as regent.

Following Otto II's death in 983, Theophanu, as her son Otto III's regent, would name John as Otto III's tutor.

Six months later Ferdinand died, and in accordance with the terms of the treaty Leonora became regent until the eldest son of John I and Beatrice should be of age.

One of Henry V's surviving brothers, John, Duke of Bedford, was appointed senior regent of the realm and was in charge of the ongoing war in France.

* John, Prince of Brazil ( 1767 – 1826 ) served as regent of Portugal for his mother Queen Maria I, who had become mentally unfit to rule, from 1799 to 1816.

Legally, he was actually only regent for his son Conrad II of Jerusalem, only child of Yolande and the grandson of Maria of Montferrat and John of Brienne, who had been born shortly before Frederick left in 1228.

The consensus among contemporaries was that the English regent, John Plantagenet, would succeed in realizing Henry V's dream of conquering all of France if Orléans fell.

At the council of war in the Spring of 1428, the English regent John Duke of Bedford determined the direction of English arms would be towards the west, to stomp out the fires in the Maine and lay siege to Angers.

Burgundy hurried to Paris in early April to persuade the English regent John of Bedford to take the offer.