First Minister Alex Salmond said he was "very sad indeed" to hear of Mr Wyllie's death.

BBC: Scottish artist George Wyllie dies aged 90

Jan Patience, chair of the Friends of George Wyllie group, described him as "a remarkable artist".

BBC: Scottish artist George Wyllie dies aged 90

During active service, Wyllie visited Hiroshima and saw for himself the impact of the atomic bomb.

BBC: Obituary: George Wyllie

George Ralston Wyllie was born in Shettleston in Glasgow's east end on Hogmanay 1921.

BBC: Scottish artist George Wyllie dies aged 90

George Wyllie's trademark was the question mark, his works intended to provoke thought and discussion rather than provide answers.

BBC: Scottish artist George Wyllie dies aged 90

Helen Elizabeth Wyllie , Chairman, League of Hospital Friends, Inverclyde Royal Hospital (Greenock, Renfrewshire) - For services to Patient Welfare.

BBC: Famous and not so famous honoured

"I am so glad now that he saw the start of what is a year of celebration, " said his daughter, Louise Wyllie.

BBC: Scottish artist George Wyllie dies aged 90

Wyllie's award-winning play about the iniquities of the world banking system, A Day Down a Goldmine, was produced several times throughout the 1980s.

BBC: Obituary: George Wyllie

Wyllie's self-proclaimed status as "the best bogie-builder in Cardonald" as well as his burgeoning musical and dancing talent hinted at an early creativity.

BBC: Obituary: George Wyllie

In the 1980s, through the late Barbara Grigor, a champion of many a Scottish artist, Wyllie met the American kinetic artist, George Rickey, who invited him to work with him in America.

BBC: Obituary: George Wyllie