Mairead Philpott will challenge the length of her sentence today in the Court of Appeal.
Philpott, 33, was jailed for 17 years for killing her six children in a house fire in Derby.
Family friend Paul Mosley also got 17 years for the manslaughter, and Philpott's husband Mick was jailed for life.
More top news
Liberal Democrat members have overwhelmingly voted to cancel Brexit, should their party come to power at the next general election.
The former Tory said his new party would continue to campaign for a second referendum.
The south with enjoy highs of 25C today but the rest of the country will experience mild conditions.