FACTBOX - Aubry narrowly wins French Socialist leadership

(Reuters) - Martine Aubry was elected leader of the opposition Socialists by tiny majority, according to results issued early Saturday, opening the way for her to become the first woman to take charge of France's main left-wing party.

Here are some facts about Aubry.

* She is the daughter of Jacques Delors, the former Socialist finance minister and president of the European Commission, and studied at the elite Ecole Nationale d'Administration, which has produced a generation of political leaders.

* She was plucked from the obscurity of the state-owned aluminium firm Pechiney by France's first female prime minister, Edith Cresson, who appointed her labour minister in 1991. She lost the job in 1993 after the right swept to power. * She was appointed in 1997 as minister for employment and solidarity in Prime Minister Lionel Jospin's government.

* She is best known for penning a 2000 law which cut the working week to 35 hours from 39.

* Aubry said the measure would force firms to hire more staff and thereby reduce unemployment. Critics said it damaged French productivity and President Nicolas Sarkozy has largely dismantled it over the past 18 months.

* She quit Jospin's cabinet in 2001 to stand as mayor of the city of Lille in northern France. She still holds the position and is not a member of parliament.

(Reporting by Crispian Balmer; editing by Andrew Dobbie)