Labor MP Jack Dromey died suddenly in his Birmingham apartment on Friday morning, the shadow minister’s family said.
Dromey, 73, married to fellow Labor MP Harriet Harman, is believed to have died of natural causes.
The politician has represented Birmingham Erdington since 2010 and contributed to a parliamentary debate as late as Thursday.
Dromey and Harman’s son Joe tweeted: “Our father – Jack – passed away suddenly today. We loved her so, so much. Rest in peace my big x. “
A statement issued on behalf of the family of the Member of Parliament for Erdington from Birmingham said: “Member of Parliament Jack Dromey passed away suddenly this morning at the age of 73 in his flat in Erdington.
“He had been a dedicated Birmingham Erdington MP since 2010.
“He was a much loved husband, father and grandfather, and he will be sorely missed.”
Labor leader Keir Starmer paid tribute to Dromey as an MP who “lived his commitment to social justice on a daily basis”.
Starmer said: “A proud son of Irish parents, Jack Dromey has dedicated his life to advocating for workers through the Labor movement, becoming Deputy General Secretary of the UK’s largest union and then Labor MP.
“From supporting the strike at the Grunwick Film Processing Lab when he met Harriet, to being elected to represent Birmingham Erdington in 2010, Jack has lived his commitment to social justice every day.
“Jack was known for his determination to stand up for his constituents and he was well respected and warmly regarded throughout Parliament.
“My thoughts and those of the entire Labor movement are with Harriet, their children and everyone who knew and loved Jack.”
House of Commons Speaker Lindsay Hoyle said MPs were “in disbelief that the life force that was Jack Dromey is dead.”
In a statement, Hoyle said: “We all don’t believe the life force that was Jack Dromey has passed, it’s another sad day for the House and a bad start to the year.
“I’ve known Jack since the mid-1980s, when we fought to save the Royal Ordnance Factory in Chorley, he was the national leader of the Transport and General Workers’ Union and I was president of economic development at Chorley Council.
“He was a great guy, down to earth, always positive and always looking to support and save jobs.
“In his heart he was a devoted husband, father and grandfather, so all our thoughts are with Harriet and the rest of the family at this very sad time.”
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