Kate made the visit to Evelina Children’s Hospital hours after attending St Paul’s cathedral

Kate Middleton paid a surprise visit to a children’s intensive care ward in central London hours after attending the Queen’s Service of Thanksgiving, it has emerged.

The Duchess of Cambridge was seen speaking to patients, parents and staff at the Evelina Children’s Hospital in Lambeth, south London, on Friday.

She is thought to have wanted to boost morale among those unable to join in the Platinum Jubilee celebrations and highlight the work of medical workers in children’s healthcare as a royal patron of the hospital.

They included seven-day-old Florence Clements, who has heart problems, wearing a tiny knitted crown above various tubes and electrodes attached to her face.

Other children at the hospital pitched in to make colourful decorations honouring the jubilee.

They included corgi-shaped bunting and a sparkling crown above a cut-out of the number 70 referencing the number of years since the Queen’s coronation.

The Evelina Hospital is part of Guys’ and St Thomas’ NHS Trust, which has had the Duchess’ royal patronage since 2018.

Hospital staff shared the news of Kate’s visit on Saturday along with pictures of the Duchess alongside Florence and her parents.

Kate paid a visit to seven-day-old cardiac patient Florence Clements and her parents

The hospital shared details of the Duchess’ visit amid Saturday’s celebrations (Picture: Evelina Hospital)

They wrote on Twitter: ‘We received a very special surprise last night! Our Patron, HRH The Duchess of Cambridge, dropped in for a private visit to meet our patients, families and staff unable to join in the celebrations this weekend.

‘Luckily the hospital was already decked with Platinum Jubilee decorations made by some of the children and young people we are caring for. Thank you YRH for thinking of us.’

Kate’s visit was focused on the hospital’s paediatric intensive care unit, although it provides a wide range of services from pre-natal care to supporting teenagers with complex conditions as they transition into adulthood.

The 40-year-old has frequently used her patronage to champion children’s healthcare across the Trust.

The child patients crafted special bunting and paper cut-outs to mark the Jubilee (Picture: Evelina Hospital)

She is thought to have spent the following day baking with her children, George, Charlotte and Louis, before heading to Wales with the eldest two and William for a special Jubilee concert in Cardiff Castle.

The Cambridges shared pictures of Kate and her kids making cupcakes which were due to be shared with residents at a street party in the city on Sunday.

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