Colin Weir (L) and his wife Chris spray a bottle of champagne after a news conference at a hotel near Falkirk, Scotland on July 15, 2011.
A couple who won a record EuroMillions jackpot in 2011 are bankrolling the campaign for Scottish independence, contributing 5 million euros ($4.2 million, three million euros) in the past year, the campaign said on Sunday.
Colin and Christine Weir, from Largs near Glasgow, won 185 million euros (then $260 million) in July 2011, becoming Europe's biggest ever lottery winners.
New figures show that since April 1, 2013, the Weirs each contributed 1.25 million euros (1.53 million euros) to the campaign for a "Yes" vote in September's referendum, in addition to their 1 million euros donation the previous year.
Their contribution makes up the vast majority of the 3.15 euros million received by the campaign in the past year. Another 11,000 people have made donations.
"We greatly appreciate and are hugely encouraged by the thousands of people across Scotland who have made donations - both large and small - according to their financial means," Yes Scotland Chief Executive Blair Jenkins said in a statement.
A poll tracker devised by the Financial Times suggests the gap is narrowing between the two campaigns although the "No" camp has a nine-point lead, with 15 percent undecided.