Two great-grandchildren of a Nuremberg prosecutor are travelling the UK singing about the European Convention on Human Rights (ECHR).

Robert and Lily, descendants of David Maxwell Fyfe, are celebrating the 75th anniversary of the convention.

Their journey has taken them to towns and cities connected with Magna Carta and the convention, including Salisbury, where they sang in the cathedral cloisters.

During their visit to the city, the pair sang an original musical setting of words taken from Magna Carta.

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Sue Casson, composer of Dreams of Peace & Freedom and David's great grandchildren, Lily Casson and Robert Blackmore in the cloistersSue Casson, composer of Dreams of Peace & Freedom and David's great grandchildren, Lily Casson and Robert Blackmore in the cloisters (Image: Supplied) They said: "In the last days of autumn, we are travelling the length of the UK singing to celebrate the protections given to us by the European Convention on Human Rights in its 75th anniversary year.

"We are passing through towns connected with Magna Carta, the first great charter of freedom, and those connected to the convention through our great-grandfather, David, singing about how the ECHR came to be."

The siblings have been living with the story of the convention for more than a decade and have grown up with the tale of their great-grandfather.

They said: "We have grown up with the story of our great-grandfather David Maxwell Fyfe, and learnt how his forensic study of war crimes and prosecution of leading Nazis at the Nuremberg Trials led to him becoming an ‘artisan’ of the European Convention on Human Rights at Strasbourg."

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Their journey is part of their commemoration of ECHR75, which they have named Songs of the People.

They have sung in Edinburgh, Liverpool, Oxford, Salisbury, Canterbury, Bury St Edmunds, Lincoln and Durham, sharing their travels on social media.

They said: "We have become aware that we are unusual amongst our generation in knowing the significance of this piece of history.

"As we have discovered it is not taught in British schools as courses tend to run until VE day and not beyond, meaning that the story of peace-building after the Second World War is often overlooked."

The siblings believe their storytelling through song is an effective way of raising awareness about the convention.

They said: "We've found the way we tell our story touches and affects audiences, which convinces us that it is an effective way of raising awareness about this remarkable piece of history and the convention itself."

They hope their journey will inspire more ambitious performances and educational programmes next year.