Lillian Lethbridge-Stewart

Lillian Katherine Lethbridge-Stewart (née MacDougal (PROSE: The Ghosts of N-Space) or McDougal (PROSE: Island of Death) was the grandmother of Alistair and James Lethbridge-Stewart, the wife of Alistair Conall Hamish Lethbridge-Stewart, the mother of Gordon and Matthew Lethbridge-Stewart, and was the second cousin of Mario. (PROSE: The Ghosts of N-Space, Night of the Intelligence)

Biography
In her early life she was something of a socialite, and often travelled with a group of friends including a woman called Ruby. Originally, she met Alistair in May 1896 at the Palais Garnier, and it was 'love at first sight'. (PROSE: The Dinner Party, An Ordinary Man) However, time was altered by the machinations of Topher Si-William, and they did not meet at the Palais Garnier. Instead, it was only due to the introduction of a time travelling Archie Lethbridge-Stewart that they met, and when Alistair saved Lillian's life during an attack by the Guilded Serpent Society, Lillian 'noticed' Alistair for the first time. These events altered time in small subtle ways, balanced and repaired by 'Time itself', according to the Accord. (PROSE: Foreword to the Past)

In 1902, while her husband was off on a mission, in a moment of loneliness she turned to her brother-in-law, Archibald Hamish Lethbridge-Stewart, and a night of indiscretion followed. Nine months later she gave birth to her second child, Gordon. Everyone believed the father to be Alistair. (PROSE: The Note)

The name 'Granny McDougal' stuck after James Lethbridge-Stewart learned about his grandmother's maiden name, and turned the song, "Old McDonald Had a Farm", into a song about her. (PROSE: Night of the Intelligence)

Circa 1925, she moved with her husband to the Stewart Estate in Appin, Scotland, where she returned to the life of a socialite. In 1945, after receiving a telegram that Gordon was declared missing in action, Lillian went with her husband to Bledoe to attend a memorial service for her son. (PROSE: The Note)

In one version of history she died either when her grandson, Alistair, was thirteen or in 1955. (It is not stated if it was his maternal or paternal grandmother who died in both cases.) (PROSE: Island of Death/PROSE: The King of Terror) However, she remained alive at least until the early 1970s, probably a result of the altered events of 1896 (PROSE: The Forgotten Son, Night of the Intelligence, Foreword to the Past).

Alternative timeline
In a timeline created by the collapse of quantum nexus, Lillian never met Alistair in 1896, and instead happened upon Archibald in 1897 in Cromer, where the two fell in love and later married. As a result, Gordon was their only son and a very different life unfolded for all of them. (PROSE: An Ordinary Man)