Meryl Streep's girls! New mom Grace Gummer and sister Louisa Jacobson twin in chic black coats at Succession premiere... after The Newsroom star welcomed baby with Mark Ronson

Grace Gummer and her sister Louisa Jacobson put on a chic display as they attended the season 4 premiere of HBO's Succession on Monday.

The actress, 36, and the model,  31 - whose parents are Hollywood icon Meryl Streep and sculptor Don Gummer - twinned in matching stylish black coats at the event, held at Jazz at Lincoln Center in New York City.

Grace - who recently welcomed her first child with Mark Ronson - wore a high-neck black top under her coat, and accessorized with black boots. The beauty sported her brunette tresses in loose waves for the night.

Meanwhile Louisa wore a plunging black velvet dress under her overcoat, and finalized the outfit with black heels.

The sisters both opted for delicate makeup, wearing just a hint of blush and nude lipstick. 

Chic: Grace Gummer and her sister Louisa Jacobson put on a chic display as they attended the season 4 premiere of Succession on Monday

Chic: Grace Gummer and her sister Louisa Jacobson put on a chic display as they attended the season 4 premiere of Succession on Monday

Famous parents: Grace and Louisa are the daughters of actress Meryl Streep, 73, and sculptor Don Gummer, 76; Pictured 2015

Famous parents: Grace and Louisa are the daughters of actress Meryl Streep, 73, and sculptor Don Gummer, 76; Pictured 2015

Meryl, 73, and Don, 76, are also parents to another daughter Mamie, 39, and son Henry Wolfe, 43. 

Succession follows the powerful Roy family, who run a massive media conglomerate, with Shiv (Sarah Snook) and her siblings Roman (Kieran Culkin), Kendall (Jeremy Strong) and Connor (Alan Ruck) all working below their father Logan (Brian Cox). 

The cast also includes the likes of Hiam Abbass, Nicholas Braun, Peter Friedman, Natalie Gold, Ron Yang, Parker Sawyers, Dagmara Domińczyk, Arian Moayed, J. Smith-Cameron, Justine Lupe, David Rasche and Fisher Stevens. 

The show has won 13 Emmy Awards so far, including several for Armstrong for writing and drama series honors in 2020 and 2022. 

Louisa has been busy with her thriving acting career, including her role in The Gilded Age, written by Downton's Julian Fellowes' and featuring an all-star ensemble cast including Cynthia Nixon and Christine Baranski.

She played the character of aspiring writer Marian Brook who moves from Pennsylvania to New York to live with her wealthy aunts.'

Meanwhile Grace has focused on motherhood, after welcoming her first child with musician Mark Ronson, 47.

The married couple were seen out for the first time with their baby – taking a stroll in New York on Sunday afternoon, with Mark carrying the child in a papoose - five months after the London-born producer and record executive revealed that he and his wife were expecting.

Twinning: The wife of Mark Ronson, 36, and the model, 31, twinned in matching stylish black coats at the event, held at Jazz at Lincoln Center in New York City

Twinning: The wife of Mark Ronson, 36, and the model, 31, twinned in matching stylish black coats at the event, held at Jazz at Lincoln Center in New York City

Stylish: Grace wore a nigh-neck black top under her coat, and accessorized with black boots. The beauty sported her brunette tresses in loose waves for the night

Stylish: Grace wore a nigh-neck black top under her coat, and accessorized with black boots. The beauty sported her brunette tresses in loose waves for the night

Taking the plunge: Meanwhile Louisa wore a plunging black velvet dress under her overcoat, and finalized the outfit with black heels

Taking the plunge: Meanwhile Louisa wore a plunging black velvet dress under her overcoat, and finalized the outfit with black heels

Family: Meryl and Don are also parents to another daughter Mamie, 39, and son Henry Wolfe, 43; (L-R) Meryl, Don, Grace, Henry, and Mamie

Family: Meryl and Don are also parents to another daughter Mamie, 39, and son Henry Wolfe, 43; (L-R) Meryl, Don, Grace, Henry, and Mamie 

An onlooker said: 'Mark and Grace looked to be quite exhausted as most new parents are. But they managed to take a long walk in New York on what was a beautiful sunny day.

'They were very protective, checking in on the baby every few seconds. Mark wrapped the infant under his jacket for warmth and looked every bit the smitten father.'

Ronson married Grace in an intimate ceremony in August 2021 after dating for a year.

Before announcing they were expecting, the Uptown Funk DJ spoke of his desire to become a father, saying: ‘I realized I do want a family. I need to do the things that are going to get me there.

‘I think I could keep going and trying to be Peter Pan but I would rather come home at 8pm to someone I love and let someone else do the partying from now on.’

Mark's ex-wife Joséphine de La Baume recently revealed she is expecting first child with Carlos O'Connell.

The couple tied the knot in 2011 in Aix en Provence, in the South of France, with the then-bride wowing in a low-cut Zac Posen wedding gown and cropped veil.

The pair filed for divorce back in 2017 after a little more than five years together and cited irreconcilable differences as the reason for their split. Their divorce was finalized in 2018.

In October, Mark's wife Grace confirmed her pregnancy as she showed off her growing baby bump in a red dress at W Magazine's 50th anniversary party in New York.

New Parents: Grace recently welcomed her first child with musician husband Mark Ronson, 47. The couple have been married since 2021; Pictured 2022

New Parents: Grace recently welcomed her first child with musician husband Mark Ronson, 47. The couple have been married since 2021; Pictured 2022