When Melania met Donald, she was working as a successful model while he was well-known as a businessman and TV personality.
The couple dated for around seven years before they tied the knot in January 2005.
Melania became a stepmother of four, Donald Trump Jr, 42, Ivanka Trump, Eric Trump, 36, and Tiffany Trump, 26.
Since Donald became President, Melania has been spotted with Ivanka, who took on a role as a senior political advisor.
Melania Trump: She is the wife of Donald Trump
Just this week, they were seen together for the final day of the Republican National Convention in Washington.
In their political roles, Melania and Ivanka have both made many speeches in the last few years.
They appear confident when speaking in public, according to James Bryce, CEO and founder of communications analytics firm gweek.
He said: "When we analysed both Ivanka and Melania’s earlier speeches, interestingly both women show they are competent, confident and eloquent speakers."
Comparing clips of Melania and Ivanka before Donald was elected to more recent speeches, he noted the differences.
James explained Melania has not changed too much but may have had some training.
He continued: "With Melania, there is very little change between the different clips – which in itself suggests that she has persisted with a rehearsed and scripted approach.
"I would suggest that Melania has had some training to allow her to deal with high-pressure situations.
"For instance, she speaks at a controlled, diligent pace and sticks to the plan, leaving little room for error in her delivery.
"It would be interesting to see how she fares without a script or teleprompter for support."
While the mother-of-one has mostly stayed the same, Ivanka has developed some new techniques.
Like her stepmother, Ivanka may also have had some training to improve her speeches.
"In the case of Ivanka, looking at her earlier speeches compared to her more recent ones, it’s possible she has had some professional training to boost her confidence in delivery," the expert said.
"In her recent speech, she shares her ideas more efficiently; relying on a few key words to explain her meaning, as opposed to long sentences spoken at speed.
"There are also fewer hesitations in her speech, which suggests she is more confident."
Melania Trump: Five facts about the USA’s First Lady
Mum-of-one Melania can speak more languages than any other First Lady before her: English, French, German, Italian, Serbian and of course her mother tongue, Slovenian.
This also makes her the only First Lady whose first language is not English.
After Jacqueline Kennedy, Melania is the second First Lady who is a practising Catholic.
She met Pope Francis as part of a foreign tour with her husband and stepdaughter Ivanka.
Melania was a successful model, posing for Sports Illustrated, Vanity Fair, Vogue, Harper’s Bazaar and GQ.
Her skills aren’t confined to print, and she appeared in a commercial for Aflac, an American insurance company, in 2005.
Melania’s parents are Amalija Knavs and Viktor Knavs, and the couple live together in Washington.
She has one sister, Ines, who is reported to live in New York and work as an artist.
On May 7 2018, Melania launched her flagship campaign as First Lady, BE BEST, which The White House describes as “an awareness campaign focused entirely around the well-being of children”.
There are three main strands to the initiative: well-being, social media, and opioid abuse.