Francois Fillon won the Republican Party's nomination after a strong debate performance.

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Francois Fillon served as prime minister under Nicolas Sarkozy from 2007 to 2012

He wants to end the 35-hour work week and has vowed to be tough on unions

CNN  — 

He’s been called the “French Thatcher” for his apparent admiration of Britain’s “Iron Lady” and willingness to tackle the unions.

On Sunday, Francois Fillon clinched the Republican party’s presidential nomination, having beaten his closest rival Alain Juppe in a second-round vote.

He’d already dispatched former President Nicolas Sarkozy, in whose government he served as prime minister between 2007 and 2012.

French Republicans will be hoping he can do the same to Marine Le Pen, leader of the far-right Front National, in a popular vote for the French president in May next year.

Mild mannered racing fan

The 62 year old lawyer-turned-politician grew up in a strict Catholic household in Sarthe, western France, to a notary father and history teacher mother.

At the age of 27 Fillon was elected mayor of Sable, and worked his way up the political ladder to become Sarkozy’s mild mannered prime minster in 2007.

“Sarkozy was such a big personality that I think a lot of people don’t really know who Fillon is,” said Aurelien Mondon, senior lecturer in French politics at Bath University.

“Indeed one thing that could work against Fillon is his lack of charisma.”

The father-of-five lives in a 12th century castle near where he grew up, with Welsh-born wife Penelope.

He is also a race car enthusiast who once appeared on France’s Top Gear TV program.

What does he stand for?

In a nutshell: Fillon aims to end the 35-hour work week, cut public spending, abolish the wealth tax, reduce immigration and invest 12 billion euros in security, defense and justice.

Tough on unions: French newspaper Liberation morphed Fillon’s face with Margaret Thatcher’s in a terrifying front cover this week – no doubt inspired by the Republican’s admiration of Britain’s former prime minister, his tough talk on unions, and pledge to cut 500,000 jobs from the civil service.

Warmer on Russia: “Fillon wants to renew links with Russia and has been praising Russian politicians lately,” said Mondon, adding: “It could put him in the same category as the populist right that is on the rise across Europe.”

Critical of same-sex marriage: In 2013 Fillon voted against same-sex marriage, which came into law under President François Hollande.

“Fillon comes from the Catholic conservative side and is supported by radical Catholic organizations – particularly the ones who organized anti-gay marriage demonstrations three years ago,” explained Mondon.

Supported burkini ban: Fillon offered his support to the mayors who passed temporary burkini-bans over the summer. A court in Nice later suspended the city’s ban.

Why he could be France’s next president

Just a few weeks ago, Fillon was considered an unlikely bet for the presidency, but he won over voters with a poli