Katherine Schwarzenegger cradles one-month-old baby Lyla during a stroll with mom Maria Shriver

Katherine Schwarzenegger and newborn daughter Lyla were seen out for their first time in public on Sunday.

The author wife of Chris Pratt looked like a doting mom while strolling around Santa Monica with her own mother Maria Shriver.

The second generation celebrity, 30, carefully cradled her five-week-old princess’ head during the walk, where she kept the baby safe and secure in a Baby Bjorn carrier strapped to her front.

Baby debut: Katherine Schwarzenegger was seen with baby Lyla, one-month, for the first time in public on Sunday during a walk with mom Maria Shriver

Oh baby! You could catch just of hint of Lyla's face during the stroll

Oh baby! You could catch just of hint of Lyla’s face during the stroll

Katherine was the image of mom-chic style donning a forest green hoodie and black leggings for the outing. She accessorized with cat-eyed glasses and pinned her hair back with an shimmering alligator clip in a lime hue.

Meanwhile, mom Maria kept up the faith donning a Virgin Mary tee shirt with her own slick leggings. She tossed a denim jacket on once things got cold.

While Katherine definitely seemed like she was in a protective mode, her journalist mom Maria, 64, couldn’t hide her glee – even behind her California state-mandated face mask.

Katherine and movie star husband Chris, 41, announced the birth of their baby girl on August 10, taking to Instagram to share a sweet photo of the parents holding their newborn’s tiny hand. 

Precious cargo: The second generation celebrity, 30, carefully cradled her five-week-old princess' head during the walk

Newborn: Lyla Maria Schwarzenegger Pratt was introduced to the world on August 10th, two days after being born

Precious cargo: The second generation celebrity, 30, carefully cradled her five-week-old princess’ head during the walk

All good? Katherine peeked under Lyla's swaddling blanket to make sure she was alright

All good? Katherine peeked under Lyla’s swaddling blanket to make sure she was alright

Keep calm and carry on! While cruising around she kept the baby safe and secure in a carrier strapped to her front

Keep calm and carry on! While cruising around she kept the baby safe and secure in a carrier strapped to her front

Smiles all around: Maria glowed while gazing at her grandchild

Check: Katherine and Maria stopped and made sure they were good to go at one point

Smiles all around: Maria glowed while gazing at her grandchild 

Grinning grandma: While Katherine definitely seemed like she was in a protective mode, her journalist mom Maria, 64, couldn't hide her glee - even behind her California state-mandated face mask

 Grinning grandma: While Katherine definitely seemed like she was in a protective mode, her journalist mom Maria, 64, couldn’t hide her glee – even behind her California state-mandated face mask

‘We are beyond thrilled to announce the birth of our daughter, Lyla Maria Schwarzenegger Pratt,’ Pratt said. ‘We couldn’t be happier.’ 

‘Both mom and baby are doing great. We are extremely blessed,’ he continued, signing off: ‘Love Katherine and Chris.’   

Katherine’ brother Patrick first confirmed the birth to ET days prior during a visit to a market in Santa Barbara, CA.   

Easy going: Katherine was the image of mom-chic style donning a forest green hoodie and black leggings for the outing

Easy going: Katherine was the image of mom-chic style donning a forest green hoodie and black leggings for the outing

Blessed: mom Maria kept up the faith donning a Virgin Mary tee shirt with her own slick leggings, tossing on a denim jacket once things got cold

Blessed: mom Maria kept up the faith donning a Virgin Mary tee shirt with her own slick leggings, tossing on a denim jacket once things got cold

Chit chat: The girls had plenty to talk about while roaming around the neighborhood

Chit chat: The girls had plenty to talk about while roaming around the neighborhood

Back and forth: While Katherine was sure to mask up, mom Maria slipped her face mask off and on

Back and forth: While Katherine was sure to mask up, mom Maria slipped her face mask off and on

‘They’re doing great — just got her a little gift,’ said the 26-year-old actor, who could be seen ‘carrying a package with a pink ribbon.’  

The couple’s pregnancy was confirmed by Maria on May 1, when Pratt appeared as a guest on her Instagram Live series #HomeTogether.

‘You’re gonna have another beautiful family member,’ said Shriver to Pratt at the time.

Happy news: Katherine and movie star husband Chris, 41, announced the birth of their baby girl on August 10

Happy news: Katherine and movie star husband Chris, 41, announced the birth of their baby girl on August 10

Sweet: The family's tender reveal showed three hands holding

Sweet: The family’s tender reveal showed three hands holding 

Days later, Katherine was spotted for the first time with a visible baby bump, while out walking her dog.

Though this is Schwarzenegger’s first child, Pratt already shares a seven-year-old son Jack with ex wife Anna Faris, 43.

News of Katherine’s pregnancy came just 10-months after her wedding to Chris, which took place in June of 2019 during ‘an intimate ceremony’ in Montecito, California.

He had proposed to Katherine in January of that year, less than a year after they began dating in June of 2018. 

Expecting: The couple's pregnancy was confirmed by Maria on May 1, when Pratt appeared as a guest on her Instagram Live series #HomeTogether

Expecting: The couple’s pregnancy was confirmed by Maria on May 1, when Pratt appeared as a guest on her Instagram Live series #HomeTogether

Engaged: Chris had proposed to Katherine in January of 2019, less than a year after they began dating in June of 2018

Engaged: Chris had proposed to Katherine in January of 2019, less than a year after they began dating in June of 2018

Chris and Katherine were first linked in 2018, after they were spotted canoodling in Santa Barbara, CA.  

The couple did not confirm their relationship status until December of 2018, a little over a month after Chris’ divorce from Anna was finalized, as reported by E! News.

Only months prior, Chris filed for divorce from Faris after eight-years of marriage, citing ‘irreconcilable differences,’ according to TMZ. 

They asked for joint custody of their son Jack who was five-years-old at the time.

His older son: Chris and ex Anna Faris divorced in 2018. They have joint custody on son Jack, seen as a family in 2017 above

His older son: Chris and ex Anna Faris divorced in 2018. They have joint custody on son Jack, seen as a family in 2017 above