Kim Kardashian and Kanye West would've been forbidden from calling their son Saint if they lived in New Zealand because the moniker is on the country's Department of Internal Affairs list of unacceptable names.
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The little one's moniker features on the country's Department of Internal Affairs list of unacceptable names, so the pair - who also have two-year-old daughter North - would've had to think again if they had moved to New Zealand from the US.
According to New Zealand Herald newspaper, the department doesn't allow any names which imply a child has a title or a rank.
This rules out Saint - who was born on Saturday - as well as monikers Prince, Princess, Majesty, Duke, Special Constable and Justice, all of which were rejected in the country last year.
Other religious names turned down by the department include Christ, Lucifer, Messiah, Christ and Bishop.
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Kim, 35, confirmed her and Kanye, 38, had named their newborn on Monday.
Alongside several emojis, she tweeted: "SAINT WEST (sic)"
But one Twitter user unknowingly got there first when it came to tweeting Saint's name.
The social networker correctly predicted the showbiz power couple would call their baby Saint - six months before he was born.
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In a tweet posted on June 22, 2015, which has been retweeted more than 117,000 times and received over 90,000 'likes' after going viral, the tweeter wrote: "watch kanye name his kid "saint" or some stupid s**t (sic)"
Kim and Kanye are said to have opted for the name Saint for their little one because he is a "blessing" after a "difficult pregnancy".
The reality TV star gave birth to her son almost three weeks before her due date on Christmas Day.
Saint? Kim's 'most painful experience ever'
Kim Kardashian West reportedly had a "really tough" birth when she welcomed son Saint into the world on Saturday.
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The 'Keeping Up With The Kardashians' star reportedly suffered from placenta accreta, where the placenta remains attached to the womb, again when she gave birth to her son Saint on Saturday.
A source told PEOPLE magazine: "She had a really tough birth because of the issues with her placenta."
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Meanwhile, the 35-year-old television personality - who already has two-year-old daughter North with husband Kanye West - previously revealed she may have to have a hysterectomy after she gave birth to her son because of the condition.
She shared: "With the issues I had last time, my risk of having preclampsia and placenta acreeta are increased and there's not a whole lot I can do to prevent it, so my anxiety is a little high leading up to my delivery.
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"In a very rare case, I might need a hysterectomy after delivery if my condition is severe enough, but luckily my doctor doesn't think this will happen. So as time goes on, I am stressing out less and trying to go with the flow.
"We induced my labor and I had North soon after. Right after delivery, the placenta usually then comes out. Mine did not. My placenta stayed attached inside my uterus, which is a condition called placenta accreta ... My doctor had to stick his entire arm in me and detach the placenta with his hand, scraping it away from my uterus with his fingernails. How disgusting and painful!"
Kim's rising son, post-baby, body plans
Kim Kardashian West insists she wants to lose her baby weight slowly following the birth of her second child, a son.
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The 'Keeping Up With The Kardashians' star has just given birth to her second child, a baby boy, but has insisted she is in no rush to ditch the baby weight and would rather be a "little bit more realistic" and take her time.
She wrote on her official website: "A few weeks to go and 60 pounds up! I look at other celebrities and Instagram girls who are literally so skinny right after giving birth. How is that possible?!?!
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"I mean, I'm focused and I love the challenge of getting my body back and feeling good again, BUT I am going to be a little bit more realistic. I'm not saying anyone is being unhealthy or not doing it the right way, but how do they lose weight and look so good so fast?! (sic)"
Meanwhile, the 35-year-old television personality - who also has two-year-old North - recently admitted she would love to have a third child and isn't worried about her weight "slipping" until then.
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She explained: "I'm not worried about after [giving birth to my second child] ... I'm just worried about number three, that's when your body really starts to slip."