A family archive on Elizabeth O’Kelly, who donated her €30m fortune to five Irish charities, has been described as a ‘treasure trove’ of information on the "fascinating and deeply private woman".

Earlier this month it emerged that Elizabeth O’Kelly donated her €30m fortune to the five Irish charities - the Irish Cancer Society (ICS), the Irish Heart Foundation, the Irish Society for Autism, the RNLI and the Irish Kidney Association (IKA).

Ms O’Kelly died in her 93rd year in December 2016 and Archivist at Maynooth University Library, Roisín Berry confirmed on Monday that the executors of Ms O’Kelly’s estate donated Ms O’Kelly’s family archive to the university library in September.