In 1981 she became engaged to Prince Charles, the oldest son of Queen Elizabeth II. One of the most important things he did, were; Prince of Wales's Charitable Foundation in 1979, he is currently patron or president of around 400 organizations. In 1980 he penned a children's book titled The Old Man Of Lochnagar. He has also written books on the natural world and the environment including Climate Change.

 

Charles and Diana got married in 1981 and she became the Princess of Wales. She was the first wife of Charles, Prince of Wales. They also had children; Princes Wiliam and Harry. Their marriage was marked by Charles’ extramarital affairs, so they ended up separating. 

 

Finally, on the 31 August of 1997, Diana would die in a tragic car accident.

The Balfour Declaration, issued in the early 1920s, recognized the transformation of the Empire's Dominions as autonomous, self-governing entities within a Commonwealth of Nations. Following World War II, the bulk of British colonies and territories gained independence. The title of Head of the Commonwealth was assumed by George VI and his successor, Elizabeth II (the current queen). Commonwealth realms refers to the United Kingdom and fourteen other autonomous sovereign states. Despite the fact that the monarch is shared, each country is sovereign and independent of the others, and each realm's monarch has a unique and official national title.
(Wikipedia, British royal family) 

She is the Head of State and has the responsibility to give the green light to all the legislations submitted. She must remain neutral on any political issue and she can’t vote or be voted for. 

The Queen is considered Head of the Nation as well, which means that she represents national identity, unity and British pride. Besides, she is recognized as the Commander in Chief of the British Armed Forces, but she can’t command direct attacks without these being discussed in the Parliament.

Finally, she attends public events and charity organizations, too. She directly supports patients, people with limited resources or reading clubs. 

The Royal Family as a whole attends around 2,000 formal engagements each year in the United Kingdom and across the world.

Official State obligations may be included in these interactions. When The Queen is unable to be present in person, members of the Royal Family regularly perform official engagements in the UK and overseas. At an Investiture, for example, the Prince of Wales and The Princess Royal may bestow honours on members of the public.

The Royal Family supports The Queen in making her visitors feel welcome at formal occasions like receptions, State dinners, and garden parties.

Members of the Royal Family frequently represent the Queen and the nation in Commonwealth or other states, at ceremonies like State funerals or national celebrations, or on longer visits to improve Britain's diplomatic and economic relations.

The Royal Family is actively active in promoting and assisting the public and charitable sectors. Approximately 3,000 organisations have a member of the Royal Family as a patron or president.

In an interview with Oprah Winfrey, they would affirm that their experience in their last moments in the institution were terrible. Meghan told she had to leave everything: her career as an actress as well as her passport or her keys. She admitted even having had suicidal thoughts. 

Meghan asked the institution for help, but they just rejected her request. 

The fact that in one member of the family existed a concern about the tone of skin of their son Archie, was surprising as well. Because of this, their parents decided not to give him the title of prince. 

They also talked about Harry's relationship with his father. He affirmed that Charles stopped picking up his phone in the middle of their crisis. Harry said that he was disappointed but that relationship was something he still wanted to work on.