Victoria Starmer has been pictured at a London Fashion Week show wearing a custom-made designer dress amid a row over her receiving free clothes.

Lady Starmer appeared undeterred as she sat in the front row of the Edeline Lee runway wearing a dress in the same style as those in the show.

Her appearance comes as Sir Keir Starmer is alleged to have broken parliamentary rules by failing to declare donations of clothing for his wife bought by Lord Alli.

Lord Alli, who is also a Labour peer, paid for a personal shopper in addition to designer garments and alterations for Lady Starmer.

The peer is Sir Keir’s biggest personal donor and was at the heart of a cronyism row last month after it emerged he had a Downing Street security pass.

It is understood that Lord Alli donated a number of high-end clothes to Lady Starmer, as well as paying for her personal shopper.

Sir Keir insisted that “very important” to him that rules are followed and to have “transparency”.

He said: “I’ve always said that. I said that before the election, I’ve reinforced it after the election.

“And that’s why, shortly after the election, my team reached out for advice on what declaration should be made, so it’s in accordance with the rules.

“They then sought out for further advice more recently, as a result of which they made the relevant declarations.

“But for me it’s really important that the rules are followed. That’s why I was very pleased my team reached out proactively – not once, but twice – because it is very important that we have transparency, very important that you and others can see the rules are being followed.”

It is understood that Lord Alli has also given Sir Keir £18,685 of work clothes and several pairs of glasses in the past year, as well as spending £20,000 on his accommodation during the general election campaign.