Queen Elizabeth II died of old age, her death certificate has revealed.

The document, published by National Records of Scotland on Thursday, says the late British monarch died at 3.10 p.m. UK time (10:10 a.m. ET) on September 8 at Balmoral Castle in Ballater, Scotland.

The death certificate of Queen Elizabeth II

The death certificate of Queen Elizabeth II National Records of Scotland

The cause of death is listed as old age.

The document is signed by the Queen’s daughter, Princess Anne.