His last work on a large scale appears to have been the unfinished serenata for the marriage of the prince of Stigliano in 1723.

Chardin entered into a marriage contract with Marguerite Saintard in 1723, whom he did not marry until 1731.

His marriage in 1721 with Miss Brydges of Wallington, Surrey, led to an estrangement from his father, which ended in 1723 after her death in giving birth to a son, who also died.

on the Assumption that Ann Hatton was at least 15 at marriage she would be Age 53 by 1723.

The family was supported by a pension from the Régent and, while living in Wissembourg, Maria was asked for her hand in marriage by Louis Henri de Bourbon, Prince of Condé, who became Louis XV's prime minister at the death of the Regent in December 1723.

* 1689 Charles Robartes, 2nd Earl of Radnor ( 1660 – 1723 ) by marriage settlement as husband of Elizabeth ( died 1697 ) daughter of Sir John Cutler

During his ministry ( 1723 – 1725 ) she was in several respects the real ruler of France, her most notable triumph being the marriage of Louis XV of France to Marie Leszczynska instead of to Mademoiselle de Vermandois, the younger sister of the Duc de Bourbon.

Together they raised the children from Johann's first marriage and had 13 children of their own from 1723 to 1742, 7 of whom died at a young age:

Between 1715 – the year of Louis's death – and 1723, power transferred to the Régence ; the regent, Philippe d ' Orléans, maintained the prison but the absolutist rigour of Louis XIV's system began to weaken somewhat.

Named regent of France for Louis XV until Louis attained his majority in February 1723, the era of his de facto rule was known as the Regency ( 1715 – 1723 ).

A plan of fortifications was developed by the French military engineer Jacques Levasseur de Néré ( 1662 – 1723 ) and approved by Louis XIV's commissary general of fortifications Sébastien Le Prestre de Vauban in 1701.

When Louis XV attained his majority in 1723 Dubois remained chief minister.

Upon the death of his father on 2 December 1723, the twenty-year old Louis assumed the hereditary title of Duke of Orléans and became the head of the House of Orléans.

In 1723, Louis was conspicuous for his hostility to the former prime minister, Cardinal Dubois.

Louis also worked with Claude le Blanc and Nicolas Prosper Bauyn d ' Angervilliers in the post of Secretary of State for War ; Louis himself worked in this position from 1723 – 1730

The Régence (, Regency ) is the period in French history between 1715 and 1723, when King Louis XV was a minor and the land was governed by a Regent, Philippe d ' Orléans, the nephew of Louis XIV of France.

* By order of Louis XIV, till the time that the young Duke of Anjou reaches his majority ( 1723 ) the kingdom would be governed by the Duke of Maine, bâtard légitimé de France.

* Louis Henri de Bourbon, Duke of Bourbon ( 18 August 1692 – 27 January 1740 ) son of Louis III, Prince of Condé and Louise-Françoise de Bourbon, he was thus the nephew of Philippe d ' Orléans and was the Prime Minister of France 1723 – 26 ; he was a great rival of the Regent and the House of Orléans in general ;

* Palace of Versailles: Birthplace of Louis XV and the home of the French court before and after the Regency ; it was at Versailles that the Duke of Orléans died in 1723 ;

* May 31: Louis Dunière, politician ( b. 1723 )

Louis Henri de Bourbon, Duke of Bourbon, Prince de Condé ( Louis Henri Joseph ; 18 August 1692 – 27 January 1740 ) was head of the Bourbon-Condé cadet branch of the France's reigning House of Bourbon from 1710 to his death, and served as prime minister to his kinsman Louis XV from 1723 to 1726.

He was Louis XV's prime minister from 1723 to 1726.

The Regency ended when Louis XV reached the age of majority, thirteen, in February 1723.

Marie Anne also had a younger half-sister, Henriette de Bourbon ( 1725-1780 ), Mademoiselle de Verneuil, from her mother's relationship with the duc de Bourbon, the chief minister of Louis XV from 1723 to 1726.

The reign ( 1715 – 1774 ) of Louis XV saw an initial return to peace and prosperity under the regency ( 1715 – 1723 ) of Philip II, Duke of Orléans, whose policies were largely continued ( 1726 – 1743 ) by Cardinal Fleury, prime minister in all but name.

In February 1723, Louis XV reached his majority and thus governed the country by his own accord.

Armande Félice also had an illegitimate daughter, Henriette de Bourbon ( 1725 – 1780 ), Mademoiselle de Verneuil, from her relationship with the duc de Bourbon, the chief minister of Louis XV from 1723 to 1726.

Its power slipped away during the Regency of Philippe d ' Orléans, ( 1715 – 1723 ) and the long regime of King Louis XV, when France lost the Seven Years ' War with England, and lost much of its empire in Canada and India.

The reign ( 1715 – 1774 ) of Louis XV saw an initial return to peace and prosperity under the regency ( 1715 – 1723 ) of Philip II, Duke of Orléans, whose policies were largely continued ( 1726 – 1743 ) by Cardinal Fleury, prime minister in all but name.

Louise Julie also had a younger half-sister, Henriette de Bourbon ( 1725-1780 ), Mademoiselle de Verneuil, from her mother's relationship with the duc de Bourbon, the chief minister of Louis XV from 1723 to 1726.

* 1723 – Mathurin Jacques Brisson, French naturalist ( d. 1806 )

* 1674 – Philippe II, Duke of Orléans ( d. 1723 )

* 1646 – Godfrey Kneller, German painter ( d. 1723 )

* 1642 – Cosimo III de ' Medici, Grand Duke of Tuscany ( d. 1723 )

* 1723 – Guillaume Dubois, French cardinal and statesman ( b. 1656 )

* 1723 – Giovanni Marco Rutini, Italian composer ( d. 1797 )

In 1723 Bristol brass maker Nehemiah Champion patented the use of granulated copper, produced by pouring molten metal into cold water.

The first, most important and successful was The Beggar's Opera of 1728, with a libretto by John Gay and music arranged by John Christopher Pepusch, both of whom probably influenced by Parisian vaudeville and the burlesques and musical plays of Thomas D ' Urfey ( 1653 – 1723 ), a number of whose collected ballads they used in their work.

In 1723 his father matriculated him into the stern Collegio Ghislieri in Pavia, which imposed the tonsure and monastic habits on its students.

* 1640 – Claude Fleury, French historian ( d. 1723 )

* 1723 – Susanna Centlivre, English dramatist and actress ( b. 1667 )

* 1723 – Friedrich Melchior, baron von Grimm, German writer ( d. 1807 )

* 1652 – Augustus Quirinus Rivinus, German physician ( d. 1723 )

* 1723 – Carl Friedrich Abel, German composer ( d. 1787 )

* 1723 – John Burgoyne, British general ( d. 1792 )

* 1723 – Richard Price, Welsh philosopher ( d. 1791 )

* 1723 – Louis-Pierre Anquetil, French historian ( d. 1808 )

He declined the offer of the chair of philosophy in the university in 1723, but accepted, in 1727, the sinecure office of librarian to the city of his adoption.

Telemann returned to Hamburg, but would still supplement his income by taking up additional jobs: in 1723 – 1726 he served as Kapellmeister von Haus aus to the Bayreuth court, and between 1725 and 1730 he acted as corresponding agent to the court at Eisenach, supplying news from northern Europe.

During the 18th century, Dutch microscopist Antonie van Leeuwenhoek ( 1632 – 1723 ) discovered " animalcules " in the sperm of humans and other animals.

Image: Ikeno Taiga 001. jpg | Ike no Taiga, ( 1723 – 1776 ), Fish in Spring, Japanese

Most foreign militaries operated under the umbrella of the Multinational force in Iraq ( the MNF – I ), authorized under United Nations Security Council Resolution 1546, 1637, 1723, and 1790 until December 31, 2008.

* 1723 – After a siege and bombardment by cannon, Baku surrenders to the Russians.