The brown-haired,
blue-eyed princess described O'Neill as her "soulmate" and said he had
opened her heart -- perhaps reflecting her heartbreak after a previous
engagement was called off in 2010 amid reports of infidelity by her then
fiance.
Princess Madeleine
Therese Amelie Josephine, to give her full name, is the youngest child
of Sweden's King Carl XVI Gustaf and Queen Silvia and fourth in line to
the Scandanavian nation's throne.
The couple, who live in
New York, met through mutual friends, Madeleine said, in an interview
released by the royal court along with the engagement announcement.
Madeleine, 30, said they
had been great friends at first before romance blossomed, sharing the
same humor and having "a lot of fun together."
Read more: When UK's William and Kate got married
"I appreciate Chris for
his warmth and his humor. He has a very big heart and he manages to make
everyone in his presence feel good. Christopher is a very thoughtful
and generous person," she said.
Love struck quicker for O'Neill, who said that "from the very outset, I immediately felt something special with Madeleine."
Princess Madeleine said
the proposal, earlier this month, had been "very romantic and intimate"
but that they wanted to keep the details to themselves.
O'Neill, who has dual
British-American citizenship, confirmed he had taken the traditional
route and asked her father, the king, for her hand in marriage.
The king gave his
consent and "requested the approval by the Swedish Government, in
accordance with the procedures set out in the Swedish Constitution," the
court announcement said.
Queen Silvia is quoted
by Swedish daily newspaper Aftonbladet as saying: "The princess is very
happy and so are we. He is a real dream-son-in-law."
The wedding will take place in summer 2013 but a date has not yet been announced.
O'Neill may have been reassured by the fact he's not the first commoner to marry into Sweden's royal family in recent years.
Madeleine's elder sister, Crown Princess Victoria, wed her former personal trainer in June 2010.
Gym owner Daniel Westling was given the title Prince Daniel, Duke of
Vaestergoetland, on their marriage. The couple had a daughter in
February who became second in line to the throne of Sweden, as the first
grandchild of the king and queen.
O'Neill, 38, says he is still working on learning Swedish but has been given a warm welcome by the royal family.
Brides no longer wedded to white
"I felt part of the
family right from the very beginning. Madeleine's family is very warm
and we have a very good time when we all see each other," he said.
Born in London, where
his late father Paul O'Neill was posted from his native New York,
Christopher was educated at a Swiss boarding school before gaining an
MBA from Columbia Business School in New York, according to an official
biography provided by the Swedish court.
A 16-year career within
the field of finance followed. He is currently a partner and head of
research at Noster Capital, which has offices in New York and London --
as well as being a keen sportsman and Chelsea Football Club fan.
His mother, Eva Maria
O'Neill, is quoted by the court as saying: "As the mother of Christopher
O'Neill I am delighted at the happy news. I look forward to welcoming
Princess Madeleine, who I am very fond of, into our family. I wish them
both all possible happiness."
The couple will remain in New York for the time being but have not ruled out a move to Sweden in future.
Madeleine reportedly
moved to New York in 2010 to get over her split from ex-fiance Jonas
Bergstrom, which came just two months before her sister's wedding.
The broken tryst
followed reports that Bergstrom was "intimate" with a Norwegian college
student and handball star while they were engaged.