Jack Charlton made his name in England but he was loved as much in Ireland as he was here.
A tough defender from a famous footballing family from the north east, he spent his entire 21-year playing career at Leeds United, making a joint club record 773 appearances, before retiring as a player in 1973 and going on to enjoy a successful and colourful career as a manager, latterly as the boss of the Republic of Ireland.
Of course he won the World Cup in 1966 with his brother Bobby, whose talents over at Manchester United made him easily the more celebrated of the siblings during their playing days.
It was as a manager where Jack surpassed Sir Bobby, who had a brief spell as the boss of Preston North End before becoming a director at Old Trafford.
Jackie was revered at Middlesbrough after guiding the club into the old first division as champions in 1974. After four years at Boro, he enjoyed six seasons at Sheffield Wednesday. He also managed Newcastle.
But it was on the international stage where he came to prominence as the manager of the Republic of Ireland from February 1986.
Charlton embarked on a love affair with his adopted country and its football fans who knew him affectionately as 'Big Jack'.
In almost a decade at the helm, he built a side that made the nation proud.
He made use of the qualification rules to boost his squad with players with Irish heritage born outside the country and moulded them into a team which feared no-one.
Famously, he frequently referred to his players - often to their own faces - by the wrong names.
The recollection of midfielder Liam Brady is typical of so many similar incidents.
He recalled: "Jack Charlton's first words to me were, 'You're number eight, Ian'. I said, 'Ian Brady was the Moors murderer, Jack'."
But Jack Charlton was such a lovable character such social gaffes were laughed off. It also helped he won a lot of football matches.
It was at Italia '90 that Charlton enjoyed his finest moment as a manger, Ireland eventually bowing out to the hosts in the quarter-finals.
They were at it again four years later as Ray Houghton fired them to a glorious 1-0 win over the Italians at Giants Stadium in New Jersey, Charlton's men making an impression at a second successive finals.
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His resignation in December 1995 brought an end to a remarkable era.
Awarded the OBE in 1974, he was made a freeman of the city of Dublin 20 years later, and the affection in which he was held on both sides of the Irish Sea was reflected in the rapturous reception he received when he was presented to the crowd at the Aviva Stadium ahead of the friendly between Ireland and England in June 2015.
His family announced today that Jack Charlton, has died. He was 85.
He is survived by wife Pat, whom he married in 1958, and their three children, John, Deborah and Peter.