The father and son were members of Tewkesbury Rugby Club

Bramwell Lane, 64, and his son Chris Lane, 27, were found dead in July at Tewkesbury Rugby Club.

It is thought they were overcome by fumes from a petrol pump as they worked through the night to clear a flooded cellar so the club could reopen.

About 500 mourners attended the service to pay their respects.

A family service was due to be held later at Cheltenham Crematorium.

Mr Lane senior's ex-wife Carol was helped into the church by family members as her son's coffin followed her former husband's into the abbey.

'Mr Rugby'

Mr Lane, who was Tewkesbury RFC's treasurer, was known locally as "Mr Rugby" and worked tirelessly behind the scenes at the club.

He was remembered as a lynchpin of the community, who helped run the clubhouse and support and look after players and members.

The Churchdown male voice choir sang Guide Me O Thy Great Redeemer, The Last Chord and Let There Be Peace On Earth in tribute to the rugby fans.

Bob Dylan's Knockin' On Heaven's Door and Wishing You Were Somehow Here Again from The Phantom Of The Opera were also played.

On 4 August the Rugby Football Union held a minute's silence in memory of the pair before England's World Cup warm-up match with Wales.