Her Majesty the Queen, Elizabeth II has died aged 96, Buckingham Palace has announced.
A statement from Buckingham Palace read: “The Queen died peacefully at Balmoral this afternoon. The King and The Queen Consort will remain at Balmoral this evening and will return to London tomorrow.”
The longest reigning monarch in British history made a number of Royal visits to Hertfordshire during her 70-year reign.
Stevenage, Welwyn Garden City, Hatfield, St Albans, Hitchin, Knebworth, and the Royal Veterinary College near Brookmans Park are just some of the places in Herts the monarch visited during her time on the throne.
She also spent time as a princess at St Paul's Walden Bury, at the childhood home of Queen Elizabeth the Queen Mother.
Here's pictures from just a few of the Queen's many official engagements in the county over the past 70 years.
Welwyn Garden City
Her Majesty the Queen visited Welwyn Garden City in July 1963 for the official opening of the borough's hospital named after her.
Queen Elizabeth II was accompanied by then Minister of Health, Enoch Powell.
This was a 'Red Letter Day' for the town, and many companies closed to allow their staff to watch. Roads around the new hospital were packed by the crowds who had turned out to greet her.
A lady shared her memory of what happened next with WGC Heritage Trust.
“A select few wives of consultants and GPs were allowed viewing space in what was the Outpatient Department overlooking the front of the building, beautifully planted with Masquerade roses – very fashionable at the time.
"It was a beautiful day, warm and golden with sunshine. We looked at Her Majesty with some interest. One of the young GPs among us proclaimed: 'The Queen’s pregnant – she’s wearing elastic stockings.'
"A number of us were pregnant at the time so were well tuned into her condition. We felt a certain sympathy with her discomfort whilst also admiring her dedication to duty. A few weeks later the announcement came from the Palace that the Queen was with child – Prince Edward to be. We at the opening ceremony already knew.”
The Welwyn Times and Hatfield Herald newspapers printed a special supplement in colour to mark the occasion, which included some charming pictures of the Queen meeting patients and staff.
The QEII Hospital that the Queen opened has now been demolished and replaced with the much smaller The New QEII Hospital on the same site.
Hatfield
For the Queen's Diamond Jubilee in 2012, celebrating 60 years on the throne, the monarch paid an official visit to Hatfield House as part of a tour of Hertfordshire.
Greeted by Lord Salisbury, the Queen planted an oak tree in Hatfield Park on June 14, 2012 to commemorate her Diamond Jubilee.
A crowd of around 2,000 including schoolchildren and teachers and waiting dignitaries thronged Hatfield Park eager to catch a glimpse of the monarch.
Following the tree planting. Her Majesty was presented with flowers by pupils from three different primary schools – St Philip Howard in Hatfield, Essendon, and St Mary’s in Welham Green.
Following the outside engagement, she then headed to a more intimate drinks reception at Hatfield House, which proudly flew the Royal Standard to mark her presence.
Hitchin
During her 2012 Diamond Jubilee visit to Herts, the Queen also journeyed to Hitchin.
She was reportedly moved to tears by the reception which the residents of Hitchin gave her.
Her Majesty with her entourage travelled into the town by train.
In a procession, her cars travelled along Walsworth Road and down Hermitage Road, where the Queen was greeted by crowds in the Market Square.
From Hitchin, the Queen then visited Stevenage and Lister Hospital.
Royal Veterinary College, North Mymms
The Hawkshead Campus of the Royal Veterinary College, between Brookmans Park and Potters Bar, was officially opened in 1959 by Queen Elizabeth II.
She visited what was then a field station for the college, part of the University of London, on April 20, 1959.
Following the Queen's visit, the RVC's bursar at the time sent a letter thanking staff for their hard work in getting the Hawkshead Lane site ready.
The letter also included a message from the Queen's Private Secretary to the college's principal which read: "Her Majesty has told me to send you her thanks and to ask you to let everyone concerned with the College know how much she appreciated their welcome and how greatly interested she was in everything that they had to show her.
"The Queen believes that your students cut short their vacation in order to be there; if this was so, she hopes you will tell them that she was deeply touched by their doing so and that she was delighted to see them.
"Her Majesty sends her best wishes for the future of the new Station which she opened and for all who work for it; if their labours are as effective as the arrangement for her visit, she has no fear for their success."
The Queen returned to the RVC's campus in North Mymms in October 2003 with Prince Philip for the opening of the new 'Eclipse' Building.
Stevenage
The Queen made a visit to Stevenage in 1959, six years after her Coronation.
She officially opened the new town and visited Wilgram Way and Longmeadow School during her visit, much to the excitement of schoolchildren and families across the town.
The Queen also visited the factory of English Electric Aviation Ltd during her tour of Stevenage New Town.
Her Majesty can be seen wearing a jacket, scarf, hat and gloves in front of a Thunderbird surface-to-air missile.
The Queen returned to Stevenage in 2003, when she visited North Hertfordshire College.
She also came to Herts in 2012 during her Diamond Jubilee tour of the county.
Thousands turned out on the day to catch a glimpse of the Queen. During her 2012 visit she officially opened the new maternity unit at Lister Hospital.
The Queen also met the mothers of new-born children at the new Lister maternity unit.
Knebworth
The Queen, accompanied by the Duke of Edinburgh, visited Knebworth House in 2003.
It was Prince Philip's last visit to the Hertfordshire estate.
St Albans
On April 18, 1957, the Queen and Prince Philip, Duke of Edinburgh visited St Albans Abbey for the traditional Maundy service.
This was the first time since her Coronation in 1953 that the Queen had distributed Maundy money outside of London.
Borehamwood
In 2001, the Queen visited The Queen Vic pub during a tour of the EastEnders set at BBC Elstree Centre in Borehamwood.
She was pictured there with showbiz royalty, Barbara Windsor, who played Peggy Mitchell in the BBC One soap.
Queen Elizabeth also strolled around Albert Square and through the EastEnders street market, meeting stars of the show.
Berkhamsted
On May 6, 2016, Queen Elizabeth II returned to Hertfordshire to celebrate the 475th anniversary of Berkhamsted School.
The trip marked the first visit from a reigning monarch at the school.
Dressed in pink, The Queen inspected a line of cadets from the school's Combined Cadet Force.
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