Prince Albert Edward was the second child and first son of Queen Victoria and Prince Albert.  He was quickly nicknamed "Bertie" by his parents, and became that for the remainder of his life; even his wife called him "Bertie."  Queen Victoria gave him the title, Prince of Wales, soon after his birth, thus starting the tradition that carries until today that the future heir to the throne is known as the Prince of Wales.
Throughout his childhood, he lived in the shadow of his older sister, Victoria, known as Vicky.  Vicky was bright and an excellent scholar like her father; Bertie hated his studies and did everything possible to avoid them.
That led to disapproval and consternation by both his parents.  The queen often lamented, "If only you could be more like Vicky and your father."
Bertie resented the constant disapproval and become a stubborn, obstinate child given to black rages that continued until he died.
Prince Albert and Victoria arranged his marriage to the lovely Princess Alexandra of Denmark, though they would not marry until later. When they did wed, they hardly knew one another, having met on only two previous occasions.
Though Albert eventually did master several languages and later studied at the finest universities, he remained a disappointment to his mother all his life.  He spent as much time womanizing and gambling at University as he did studying.
When word reached Victoria and Albert that he was carrying on openly with a stage actress, they were mortified.  Albert,in poor health, nonetheless traveled to where Bertie was now stationed in the military to personally chastise his son.
When he returned home, Albert was very ill.  He took to his bed and died a few days later.  Victoria blamed the Prince of Wales, stating that she could barely stand to look at him after that.
However, she saw to it that his marriage to Alexandra went forward. Though the couple had six children,  Bertie's womanizing continued.

He had an obsession for excess in everything, including his eating habits. Prince Edward had a great appetite eating five large meals a day. These meals often consisted of ten or more courses. By the time he was middle-aged, he had a waist of forty-eight inches. Edward also smoked twelve large cigars and twenty cigarettes a day.

Queen Victoria disapproved of Edward's interest in horse-racing, theatre-going and yachting, not to mention his numerous mistresses. By one account, he had over 150 mistresses, although he never acknowledged fathering any illegitimate children. Among his more infamous dalliances were those with Lily Langtry, Alice Kepple, Lady Brooke, Princess de Mouchy, Lady Randolph Churchill and Princess de Sagan.

His wife knew of his indiscretion mistresses.

His reckless lifestyle led to his being involved in several scandals. On one occasion it was discovered that he had been playing in an illegal card-game; and in 1870 he was accused in court of having an affair with Lady Mordaunt.

Victoria was horrified by her son's behaviour and warned that evidence of a pleasure-loving and immoral aristocracy might provoke the working class into adopting radical political ideas.

Edward thus attempted to gain the support of the working-class by inviting their representatives, such as Joseph Arch and Henry Broadhurst to stay at his country house at Sandringham. When Broadhurst visited Sandringham, though, he did not take with him the right evening dress; so he had to eat his meals in his bedroom. 

Edward VII became king on the death of Queen Victoria in 1901. Although he was 59 when he became king, he restored some vitality to the monarchy. He made several royal visits and helped to prepare the way for international treaties with France and Russia. The king took a particular interest in military matters. He opposed attempts to reduce public spending on the armed forces and was a strong advocate of the Dreadnought building campaign. 

Politically, the king favoured the Conservatives. He was totally opposed to the campaign by the NUWSS and the WSPU to achieve the vote for women. He disliked the Liberals, especially those such as Henry Campbell-Bannerman and Dave Lloyd George who had opposed the Boer War.

Edward VII was disappointed when the 1906 General Election brought the Liberals to power. Attempts to redistribute wealth resulted in Herbert Asquith and his government coming into conflict with the House of Lords. 

After the Lords had rejected the People's Budget in 1909, Herbert Asquith and his chancellor, David Lloyd George, asked the king to create a large number of newLiberal peers to give the government a majority in the House of Lords. The king refused, insisted that the issue should be put to the electorate in a General Election to make sure that the public supported reform of the House of Lords. 

In the middle of this dispute, the king became very ill. Edward VII died at Buckingham Palace on 6th May, 1910, leaving the constitutional crisis to be solved by his son,

Some information provided by: https://www.spartacus.schoolnet.co.uk/MOedwardVII.htmKing George V.