It was a bright, sunlit Easter day at St. George’s Chapel in Windsor this morning as members of the royal family gathered for services. 
Not only was it the Easter Mattins service, but it is also HM’s 93rd birthday, and there was a full complement of royals at church. Below, Princess Anne, Vice Admiral Sir Timothy Laurence, Prince Harry, Autumn Phillips and Peter Phillips. 
Lady Louise and her mother, Sophie, Countess of Wessex as they arrived at church. 
Zara and Mike Tindall arriving. 
Kate and Zara chatting.
Richard Palmer of The Express shared a video of HM arriving.
The Royal Family gather outside the chapel to greet the Queen on her birthday. pic.twitter.com/IpS0xb0wSt
— Richard Palmer (@RoyalReporter) April 21, 2019
From left to right, Autumn Philips, Prince Harry, Zara Tindall, Mike Tindall, Kate, and William. 
The Duchess curtsies as HM passes on her way into church.
More about the service from Simon Perry’s story in People:
In a sweet nod to the other big celebration taking place on Sunday, after the family all took their seats, the organist played “Happy Birthday To You” in honor of the monarch’s big day.
Although there was no mention of the royal birthday in the sermon, the Dean did touch on the devastating fire at Notre-Dame Cathedral in Paris last week. He also read some Easter poetry by Christian socialist Charles Kingsley, author of The Water Babies, whose birth 200 years ago will be celebrated in June.
The service was led by the Right Reverend David Conner, the Dean of Windsor. Below, HM receiving flowers after the service.
People reports they were presented by “Rufus Travers-Brown and Edward Bland, the sons of adult members of the choir.”
Another view of the Queen, wearing a duck egg blue and hot pink ensemble. 
Crowds gathered outside the chapel serenaded the Queen.
Earlier today there was a tweet from the Royal Family account showing a picture from each decade of HM’s life. “Happy 93rd birthday to Her Majesty The Queen! Our video includes a photograph from each decade of The Queen’s life, from an image of her as a baby in 1926, to her visit to King’s College last month. #HappyBirthdayHerMajesty pic.twitter.com/E2J8c5rziD
— The Royal Family (@RoyalFamily) April 21, 2019
Now to what Kate wore for Easter Sunday services. She brought back a fan favorite, the dove-grey ensemble first seen on Easter Sunday in 2014 when the Duke and Duchess attended services at St. Andrews Cathedral in Sydney.
The tailored coat by Alexander McQueen features a funnel neck, concealed front fastening, inset pockets, and a back vent.
Views from 2014. 
And a side-by-side. 
We also saw the return of the ‘Lupin’ hat created by Jane Taylor. It was first worn for Easter 2014 and brought back for the Singapore state visit in October 2014.
Kate’s heels appear to be the Emmy London ‘Rebecca’ style in the Cinder colorway; most recently we saw them at the annual Commonwealth Service in March. UPDATE: It looks like this could well be the Rebecca in the Steel colorway, not the Cinder. Thank you to @DataDuchess2 on Twitter for noting this earlier today.
The clutch by Emmy London is one we have also seen before, initially carried to the 2016 Commonwealth Service. 
Kate wore the diamond acorn earrings by Robinson Pelham first seen at her 2011 wedding.
The Duchess brought back a brooch featuring oak leaves and four “acorns” crafted of gold and a pearl. The Middleton family crest features acorns. We first saw this piece at the Diamond Jubilee Luncheon in 2012, again at Christmas Services in 2015, and just this past Christmas.
It’s understandable why so many Kate fashion followers are fond of this ensemble; it is a sleek, chic look on the Duchess.
I’ll leave the post with this video from ITV’s Royal Family Channel.
LINKAGE:
- Learn more about the Chapel at this website; the Chapel Facebook page is here; you can see more details about the service in this PDF
- The Daily Mail has coverage here and also here; The Mirror’s story is here; The Daily Telegraph’s piece by Hannah Furness is here
- Town & Country‘s gallery is here; Hello! has a story here; People’s piece is here; Harper’s Bazaar has a gallery here; a PopSugar gallery is here
Shannon
Thursday 25th of April 2019
Kate looking gorgeous as ever she is such a pro at re wearing things and making them look fresh.
Clare
Thursday 25th of April 2019
Kate looks beautiful here - I never tire of studying all her looks in absolute awe! Thank goodness for this fantastic site! These earrings are my favourites and I adore her hair now that the fringe has grown out and it’s not that really dark shade of brunette that she sometimes opts for.
Christina O.
Monday 22nd of April 2019
The Royals gave us a very interesting Easter parade of fashion yesterday! While not posted here, I did view a fun video on another site that showed the Royals chatting as they walked to St. George's Chapel two by two, in three's or in a family group. I enjoyed seeing the family members moving forward, seeing their side and back views. Very color coordinated -especially with the men in their navy suits and blue ties. The pops of floral on the ladies was refreshing. Kate's McQueen re-wear looks as pretty as ever but I couldn't help but see the similarities this year - surrounded by Royal women Kate's age and younger and older - to the Queen also dressed in a light colored coat dress with a jeweled brooch on her left shoulder.
rachel
Monday 22nd of April 2019
Gorgeous. Love it all. Beautiful and appropriate Does any one else think she looks SO much like her mother Carole, in this outfit?
LadyLeah
Tuesday 23rd of April 2019
Very much so!
Striking resemblance.
Paula Egan
Monday 22nd of April 2019
I loved the outfit 5 years ago and it still looks great, and Kate is such a model for anything she wears, but surely on an occasion she could change to a new outfit. We all wish we were five years younger, but we look for inspiration to herself and Meghan for something current, and 5 years is a long time to be repeating an outfit. Kate has had a low profile for weeks now, so it would have been lovely to see something new. In order to promote fashion and keep it selling, particularly European fashion, and with all their wealth, it would be more fitting to promote what is currently in style. there is enough doom and gloom out there without the Royal Family having to do likewise. I love the Royal Family. I am from Ireland and enjoy everything Kate and Meghan, but I do think that the public put pressure on them to repeat outfits, but is anyone expecting them to repeat items from as old as five year
Donna
Monday 22nd of April 2019
Paula, I think you make a very valid point. I too wonder why and how Kate makes her choices. And, while I think Kate looks amazing in this fabulous coat and hat, I would have loved to have seen her in a new outfit, especially if I had been on the grounds at Windsor on Easter Sunday!
Anglophile in Ohio
Monday 22nd of April 2019
Kate mostly wears classic styles so she can repeat them years later. She is not one to wear the latest trend. And there is a lot of criticism of BRF women wearing European brands that are not British.