Gemma Lowery had earlier wished his spirit on to "help our boys in Russia", and said it was "so fitting that England are playing today" as she shared a picture of her son with manager Gareth Southgate.
Despite his ordeal, Bradley, who suffered from a rare form of childhood cancer, touched the world of football and beyond with his winning smile.
The England squad said they would be thinking of the six-year-old, from Blackhall, County Durham, before they took on Sweden in the World Cup quarter-final, a game they went on to win 2-0.
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The official team Twitter posted: "We'll always remember having Bradley lead us out against Lithuania.
"That was an big win on our journey to the #WorldCup, and he was definitely our inspiration that day."
12 gorgeous pictures of Bradley Lowery to mark a year since we said goodbyeMrs Lowery posted on social media on Saturday: "I'm so happy England have won today it has made an unbearable day bearable.
"Well done to all the lads you played fantastic.
"I can't believe it has been one year since I last had a cuddle, since I last looked and touched your beautiful face and felt your breath."
Bradley was a mascot for England at Wembley when his "best mate" Jermain Defoe scored in a World Cup Qualifier against Lithuania in his comeback game.
Defoe posted a tribute saying he "Can't believe it's been one year since my best friend was taken away".
He added: "I miss you little man, but I still feel u walking with me in spirit every single day.
"You are an inspiration and your legacy will last longer than us all."
The Bradley Lowery Foundation earlier posted: "One year since my boy took his last breath. This has been the toughest of my life but made a little easier with the support I have getting from everyone.
"It is so fitting that England are playing today. Brad go help our boys in Russia."
Bradley's family has launched a Cancer Has No Colours campaign to remember him.