Happy Birthday Kaitlyn Jenner

What a night: Caitlyn was surrounded by a group of her family members this Tuesday at her 70th birthday dinner; seen with Kendall and Kylie

What a night: Caitlyn was surrounded by a group of her family members this Tuesday at her 70th birthday dinner; seen with Kendall and Kylie

Back when she was known as Bruce Jenner, Caitlyn was married to the Kardashian girls’ mother Kris, with whom she shares Kylie and Kendall.

In fact, the birthday cake Caitlyn enjoyed Tuesday was frosted with a throwback snap of her as Bruce holding Kylie and Kendall as little girls.

The birthday girl looked the picture of happiness while settling down to her cake, seated between Kylie and Brandon.

Caitlyn’s children Burt Jenner, 41, and Cassandra Marino, 39, by her first wife Chrystie Jenner were also not seen on Kim and Kourtney’s Insta Stories.

Kylie Jenner and Kourtney Kardashian celebrate Caitlyn Jenner

Quality time: Caitlyn was joined by her daughters Kylie and Kendall, son Brandon and stepdaughters Kourtney and Kim Kardashian

Quality time: Caitlyn was joined by her daughters Kylie and Kendall, son Brandon and stepdaughters Kourtney and Kim Kardashian

Noticeable: Kourtney and Kim filmed the occasion for Insta Stories - but the footage did not include their sister Khloe Kardashian or Caitlyn's son Brody Jenner

Noticeable: Kourtney and Kim filmed the occasion for Insta Stories – but the footage did not include their sister Khloe Kardashian or Caitlyn’s son Brody Jenner

Family history: Back when she was known as Bruce Jenner, Caitlyn was married to the Kardashian girls' mother Kris, with whom she shares Kylie and Kendall

Family history: Back when she was known as Bruce Jenner, Caitlyn was married to the Kardashian girls’ mother Kris, with whom she shares Kylie and Kendall

Remember when: In fact, the birthday cake Caitlyn enjoyed Tuesday was frosted with a throwback snap of her as Bruce holding Kylie and Kendall as little girls

Remember when: In fact, the birthday cake Caitlyn enjoyed Tuesday was frosted with a throwback snap of her as Bruce holding Kylie and Kendall as little girls

Khloe and Caitlyn have had an infamously strained relationship since the publication of the latter’s memoir, which included an unflattering depiction of Kris.

When the rift initially occurred, all three Kardashian sisters closed ranks around Kris against Caitlyn, but Kim and Kourtney appear to have put the matter aside.

However, an Us Weekly source claimed Caitlyn withdrew from a public engagement at a Seminole casino in Florida last week because Khloe would be there.

Loved ones: The birthday girl looked the picture of happiness while settling down to her cake, seated between Kylie and Brandon

Loved ones: The birthday girl looked the picture of happiness while settling down to her cake, seated between Kylie and Brandon

Elegant: The table was festively laid with flowers, candles and party hats, as well as some healthy-looking nibbles for the party guests

Elegant: The table was festively laid with flowers, candles and party hats, as well as some healthy-looking nibbles for the party guests

That's the spirit: Brandon got into the feel of the evening by popping on a party hat

That’s the spirit: Brandon got into the feel of the evening by popping on a party hat

Kourtney’s 36-year-old ex Scott Disick and his 21-year-old girlfriend Sofia Richie were also scheduled to be at the event, contributing to Caitlyn’s decision.

Meanwhile, Brody has confessed he was wounded that Caitlyn avoided his Indonesian wedding to Kaitlynn Carter last year.

‘Honestly, it really did hurt and I would have loved to have had her there, but she had better things to do, apparently,’ he said on The Hills: New Beginnings.

Caitlyn Jenner shows off her birthday gifts from step daughters

Details: Caitlyn's children Burt Jenner, 41, and Cassandra Marino, 39, by her first wife Chrystie Jenner were also not seen on Kim and Kourtney's Insta Stories

Details: Caitlyn’s children Burt Jenner, 41, and Cassandra Marino, 39, by her first wife Chrystie Jenner were also not seen on Kim and Kourtney’s Insta Stories

Family matters: Brody and Brandon are Caitlyn's children by her second ex-wife Linda Thompson, who also went on to have a failed marriage to David Foster

Family matters: Brody and Brandon are Caitlyn’s children by her second ex-wife Linda Thompson, who also went on to have a failed marriage to David Foster

Closing ranks: Khloe and Caitlyn have had an infamously strained relationship since the publication of the latter's memoir, which included an unflattering depiction of Kris

Closing ranks: Khloe and Caitlyn have had an infamously strained relationship since the publication of the latter’s memoir, which included an unflattering depiction of Kris

Brody and Kaitlynn broke up over the summer and she went on to have a fling with Miley Cyrus, who was herself newly separated from Liam Hemsworth.

The plot thickened when further details surfaced indicating that Brody had declined to ever legally marry Kaitlynn, TMZ reported.

In fact, the relationship fell apart specifically because of Brody’s refusal to make the marriage legal and have a baby with Kaitlynn, according to the site’s sources.

Brody and Brandon are Caitlyn’s children by her second ex-wife Linda Thompson, who also went on to have a failed marriage to David Foster.

Meanwhile: Brody has confessed he was wounded that Caitlyn avoided his Indonesian wedding to Kaitlynn Carter last year

Meanwhile: Brody has confessed he was wounded that Caitlyn avoided his Indonesian wedding to Kaitlynn Carter last year

Barbed: 'Honestly, it really did hurt and I would have loved to have had her there, but she had better things to do, apparently,' he said on The Hills: New Beginnings

Barbed: ‘Honestly, it really did hurt and I would have loved to have had her there, but she had better things to do, apparently,’ he said on The Hills: New Beginnings