Liberal Democrats and Conservatives who have been braving wintry weather to “door-knock” residents across the expansive and rural Masham and Fountains division said they believe Westminster politics and ongoing unrest in the Tory party could impact on the February 9 poll.

The by-election follows the death of Conservative councillor Margaret Atkinson in November and will see Liberal Democrat Felicity Cunliffe-Lister, who is the Countess of Swinton, take on Conservative candidate mother-of-five Brooke Hull.

Following last May’s elections, the Conservatives’ control of the 90-member authority was significantly dented, with 47 seats. The party has held sway over the North Yorkshire authority for more than two decades.

The election has been limited to two candidates after the Green Party made an informal agreement with the LIberal Democrats to step aside to give Ms Cunliffe-Lister improved odds.

Last May’s election in the division saw Mrs Atkinson win 1,076 votes, followed by Ms Cunliffe-Lister, who stood as an independent, with 738 vote and. Liberal Democrat candidate Judith Hooper who received 620 votes.

With just over a week until the residents of the very rural Masham and Fountains division go to the polls, the leaders of both parties on the council described their candidates as “excellent”.

The Tories have claimed the countess is less representative of the population than their candidate, while Liberal Democrats have countered mother-of-five Ms Hull has made no reference to her party in her election leaflet, despite being the constituency party’s campaign manager.

Ms Cunliffe-Lister said it appeared that her rival was trying to “create a little bit of distance between her and the party she represents”, before rejecting Conservative activists’ claims that as the owner of the 20,000-acre Swinton Park Estate she was less representative of residents than Ms Hull.

The former solicitor said: “I wouldn’t say I came from a privileged background, my parents were schoolteachers.

“We borrowed a huge amount of money from the bank to buy back the old family home and spent 23 years building it into a really successful business, going from zero to a £6m turnover. We’ve created 150 jobs. To me none of that smacks of privilege.”

She forecast a close result in the election, adding: “There are a lot of people on the doorstep who are very fed up with the way things are and might have voted Conservative in the past, but now either won’t vote at all or will vote for a fresh start.

“I’m also picking up on people who aren’t particularly persuaded by any party but know me because I’ve been in the area a long time, have raised a family here and have a reputation for getting things done.”

Ms Hull dismissed claims that she was trying to dissociate herself from the Conservative Party. She said the omission of the party’s name on one of her leaflets had been an oversight.

She said: “I think people know I am a Conservative candidate, I say that at the door. It’s also about trying to get younger, normal women into politics, that’s all I am. For me it’s all about local, local, local. I have a large family and we want this area to continue to be a great place to live.

“At the end of the day you’ve got to let your voters know who they’re voting for, not just a party or a person, they’ve got to know what you stand for. Margaret had done so much work around the area and you have got to hope that counts for something.”

Conservative Party's decades-long grip on North Yorkshire could be weakened by by-election