Nicola Sturgeon: Could the SNP leader play a key role in deciding Britain's next government?
Nicola Sturgeon became First Minister of Scotland and leader of the Scottish National Party (SNP) last year, after her predecessor Alex Salmond resigned following the 'no' result in the independence referendum.
The party's membership soared during the campaign, indicating the party may hold significant sway come May - so here's what you need to know:
Age: 44
Job: First Minister of Scotland and Leader of the Scottish National Party
Family: Married to Peter Murrell, the chief executive of the SNP
Background: Born in Irvine, Scotland in 1970
Education: Studied law at Glasgow University
Became First Minister and SNP leader: in November 2014, succeeding long-term ally Alex Salmond
Party campaign video
Memorable moments
Joined the SNP as 16-year-old activist
Says Scotland has "changed forever" despite Scots voting 'No' to independence
Takes over as SNP leader and First Minister following Alex Salmond's resignation
Plays down prospect of future coalition deal with Labour - though remains open to an informal arrangement
Denies that Mr Salmond is "calling the shots" after the former leader spoke about the party's demands
In pictures: