'Saylor's first Christmas!' Kristin Cavallari celebrates festive season with her new baby just two weeks after The Hills star's brother was found dead

Any child's firsts should be a happy time, but no doubt this year will be one of both great joy and sadness for this family.

Kristin Cavallari took to Instagram on Friday to mark her baby's first ever Christmas.

Wearing a pyjama onsie just like her daughter, Saylor, and holding her one-month-old in the air, the star captioned the snap, 'Saylor's first Christmas' with the hashtag '#ChristmasJammiesOnPoint'.

Christmas cuties: Kristen Cavallari celebrated her daughter Saylor's first Christmas on Friday with a post on Instagram of the pair wearing seasonal pyjamas

Christmas cuties: Kristen Cavallari celebrated her daughter Saylor's first Christmas on Friday with a post on Instagram of the pair wearing seasonal pyjamas

In the image, mother and daughter are the picture of Christmas happiness but, of course, the 28-year-old's joy comes with a lot of private pain.

As Kristin marks her youngest child's holiday milestone along with football husband Jay Cutler and sons Camden, 3, and Jaxon, 1, she is also marking her first Christmas without big brother Michael.

The 30-year-old was found dead in Utah on December 10, just over two weeks after he was reported missing.

Sad time too: This holiday season will be the first the star's family marks without her brother Micheal who was found dead December 10

Sad time too: This holiday season will be the first the star's family marks without her brother Micheal who was found dead December 10

Missing: Michael's 2014 Honda Civic was found abandoned on November 27 on I-70 in the Green River area of Utah, prompting a man hunt for the 30-year-old

Missing: Michael's 2014 Honda Civic was found abandoned on November 27 on I-70 in the Green River area of Utah, prompting a man hunt for the 30-year-old

Michael's 2014 Honda Civic was found abandoned on November 27 on I-70 in the Green River area of Utah.

The 30-year-old was reportedly suffering from some sort of mental illness and had struggled with alcohol issues.

Autopsy results are still pending a toxicology tests but early reports suggest Michael died from exposure and no suicide note was found.

Tragic loss: The 28-year-old paid tribute to her brother - who was two years older - on social media 

Tragic loss: The 28-year-old paid tribute to her brother - who was two years older - on social media 

After it was revealed her brother's body had been located, Kristin took to social media to thank people for their support and express her grief.

'My heart is in a million pieces. Mikey, I could always count on you to make me laugh. You had such a good heart and will be forever missed.'

Hinting at her brother's struggles, The Hills star said: 'I'm at a loss for words but I know u are in a better place and finally at peace. I love u so much RIP.'

Her little boys: Kristen and husband Jay Cutler also share two sons, Camden, 3, and Jaxon, 1, (pictured earlier this year)

Her little boys: Kristen and husband Jay Cutler also share two sons, Camden, 3, and Jaxon, 1, (pictured earlier this year)

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