Comedy legend Robbie Coltrane died from a string of conditions including multiple organ failure, his death certificate shows.
The 6ft 1in Harry Potter star is understood to have been unwell for some time, with other causes listed including diabetes and obesity.
Robbie, celebrated for both his acting and his comedy, died eight days ago at the age of 72.
His death certificate gives both his professional name and original birth name of Anthony Robert McMillan. He adopted the surname Coltrane in the 1970s in tribute to the jazz saxophonist John Coltrane.
Other causes of death given were sepsis, where an infection triggers an extreme reaction throughout the body, lower respiratory tract infection and heart block.
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Heart block happens when the electrical impulses that control your heartbeat are delayed or blocked.
Robbie’s death was registered by his former wife, Pilates instructor Rhona Gemmell, who he had remained close to after they split.
The dad-of-two appeared in movies including crime drama Mona Lisa with Bob Hoskins and Bond films Golden Eye and The World Is Not Enough.
But it was his TV roles that defined him, from Tutti Frutti, about Scottish rock ’n’ roll band The Majestics, to Cracker – winning five awards, including three Baftas, as criminal psychologist Eddie “Fitz” Fitzgerald.
He went on to find a wider audience playing half-giant Hagrid in all eight Harry Potter movies.
Among those to pay tribute have been comedians Stephen Fry, Hugh Laurie and Tony Robinson, and Harry Potter author JK Rowling.