(CNN) -- Dame Elisabeth Murdoch, mother of media mogul Rupert Murdoch, died Wednesday at the age of 103, "peacefully... surrounded by her family," a statement from Rupert Murdoch's representative said.
"We have lost the most wonderful mother but we are all grateful to have had her love and wisdom for so many years," 81-year-old Rupert Murdoch said.
She was at Cruden Farm, a site in Australia which Keith Murdoch, Rupert's father, gave his wife when she was 19 years old.
She had four children -- Rupert, Anne Kantor, Janet Calvert-Jones, and eldest daughter Helen Handbury, who died in 2004.
"Dame Elisabeth is survived by 77 direct descendants, including 50 great-grandchildren and six great-great-grandchildren," the statement said.
Rupert Murdoch said his mother will be mourned by thousands of Australians whose lives she touched.
"Many thanks for condolences about my Mum," the media baron tweeted Wednesday night. "A great lady, wife, mother and citizen."