Jimmy Cricket described the funeral of Nobel Peace Prize recipient John Hume as “beautiful and moving”.
The former SDLP leader died last week aged 83.
He one of the key architects of the Belfast Agreement.
The deal was also known as the Good Friday Agreement, because it was reached on Good Friday, 10 April 1998.
It was a peace agreement between the British and Irish governments, and most of the political parties in Northern Ireland, on how Northern Ireland should be governed.
The talks leading to the Agreement addressed issues which had caused conflict during previous decades.
Its aim was to establish a new, devolved government for Northern Ireland.
Unionists and nationalists would share power under the agreement.
Due to Covid-19 restrictions on gatherings, there were limited numbers at John Hume’s funeral Mass in St Eugene’s Cathedral in Derry on 5 August.
About 100 people – mostly close family and friends – attended the service.
The funeral was broadcast online.
Jimmy said on social media it was a “beautiful moving funeral Mass” for a man “who helped to bring peace”.
He added: “It was wonderful to see his great friend @Phil_Coulter, musician and composer play John’s favourite tune, The Town I Love So Well.”