Stanley Baldwin, 1st Earl Baldwin of Bewdley, KG, PC, PC, JP, FRS was a British statesman and Conservative Party politician who dominated the government of the United Kingdom between the world wars, being Prime Minister on three occasions.
In the subsequent party leadership election that year, both siblings decided to Run - with newspapers breathlessly reporting their rival bids.Ed and David Miliband embrace after the Younger Brother 's election as Labour Party leader in 2010
Tim Bale, a professor of Politics at Queen Mary University who has studied Ed Miliband's time as Labour leader, told the BBC it has been suggested the pair's relationship never fully recovered from the race.
And there were political repercussions as well. "Ed was never able to shake off the accusation that he had somehow done something wrong or was just weird in taking on and beating his older brother," Prof Bale adds.
"If focus groups are representative of anything, it cut through to voters, too. No-one would say that this cost Labour the 2015 election But it probably didn't help matters. "Stanley and Oliver Baldwin
Stanley Baldwin , Tory PM in the 1920s and 30s, led the government whilst his son, Oliver, bid to become a Labour MP. The pair went on to sit opposite each other in The Commons after Labour's win in 1929.Prime Minister Stanley Baldwin and his wife Lucy and his son Oliver in The Garden of the summer residence at Chequers, circa 1936
"In the early days, if there was any dispute between Family Members , it wasn't made very much of, the media didn't exploit it and it wasn't politicised or made into a character issue," he says.
Prof Fielding cites, which engulfed the government in 1963, as a watershed in how the media explored the Private Lives of politicians.
"We're in this era Now where family feuds are politicised and previously if and where these feuds existed they were handled very differently," he says.
"We know far more about the person of the politicians, who they are married to, their children. The focus of the media on personalities not because of their Politics But perhaps because of what jam they like. "Hilary and Tony Benn
Yet there was little evidence of animosity between the pair. When his son was selected to Run for the seat of Leeds Central in 1999, Mr Benn said: "He's his own man, he's very hard-working, very well respected. "
They would sit alongside each other in parliament for two years before Tony Benn stood down in 2001.Tony Benn (left) walks with his son Hilary and daughter Melissa
Tony Benn would go on to back his son's bid to become Labour deputy leader in 2007.
"So that's a disadvantage, But it shows how people think," Prof Fielding says. "Why should The Son or granddaughter have the same view? Why should Politics be something that is transferred through your genes?"'Through thick and thin'
Having a relative in parliament does not always mean division is on the cards.
Twins and Labour MPs Angela and Maria Eagle occupy much the same space within The Party and, despite the potential for corrosive rivalry, have been known to consent to joint interviews, which note their camaraderie and similar laugh.Twins Angela and Maria Eagle are both Labour MPs
Speaking to The Times in 2010, the pair remarked how close they were. "I've known her so long I can violently disagree and it doesn't matter," Angela said.
And mother and son Ann and John Cryer worked alongside each other on the Labour benches after being elected at the same time.
"Our view," he added, "is that if you have strong principles you keep hold of them through thick and thin. "
"It's actually incredibly unusual to see brothers and sisters both involved in Politics - perhaps because they like to differentiate themselves from each other," he says.
"How many people do you know who do the exact same job as their brother or sister?"