Macbeth (1005-?) was born in Scotland, the son of Findlaech, Steward of Moray. In the year 1020, he met and fell in love with Gruoch and that same night his father was murdered by the Hunter. Afterwards, Gillecomgain was appointed to be the Steward of Moray by Macbeth's cousin Prince Duncan.
Several years later, Gruoch was wed to Gillecomgain under Duncan's orders, but when Gillecomgain betrayed Duncan, Duncan revealed to Macbeth that Gillecomgain and the Hunter were one and the same. Enraged, Macbeth vowed to avenge his father and attacked Gillecomgain. Macbeth would have lost his life had Demona not intervened (as she had the night his father died), and in the end Gillecomgain was killed. Macbeth was made Steward of Moray, and he and Gruoch were wed as Lord and Lady Macbeth. Later that year, their son Luach was born (though whether or nor Macbeth or Gillecomgain were the father was never confirmed).
Years later, the paranoia of now King Duncan was greatly increased when the Weird Sisters spoke a prophecy stating that Macbeth would be King of Scotland. Duncan prepared to invade Moray, and while to avoid bloodshed, Macbeth was on his way to defend himself, he ran across an old and withered Demona. Macbeth begged her to help him battle Duncan. The deal was sealed by the arrival of the Weird Sisters, who linked the two warriors (and allowed Demona to regain her youth at the cost of Macbeth's) by magic. Selene informed Macbeth that Duncan ordered Findlaech's murder. In the great battle, the armies of Edinburgh were routed thanks to the assitance of the gargoyles, Duncan was slain, and Macbeth rose to the throne of Scotland.
In the year 1057, Duncan's son Canmore (who was banished following his father's death) took up the mask of the Hunter and returned leading an army of English soldiers. Canmore triumphed and before his eyes he slew both Demona and Macbeth. But they did not die, for they then learned the full price of the Sisters' meddling. Neither of the two could die, they would live eternally linked until one slew the other.
By the time of the 20th century, Macbeth amassed himself a large fortune and in an attempt to lure Demona to him, offered his services to David Xanatos to capture the Manhattan Clan, but the plot failed when Goliath informed him that Demona was their enemy. He also stole the Scrolls of Merlin, but allowed the Manhattan Clan to return them upon learning they were a diary and not spells. When Demona managed to turn Manhattan's population to stone at night, Macbeth tracked down his old nemesis. Donning the mask of the Hunter, he attempted to finally kill her and end his long, weary life. But Goliath and Xanatos intervened and the two immortals were taken away by the Weird Sisters.
The Weird Sisters used Macbeth and Demona to steal the Eye of Odin, the Phoenix Gate and the Grimorum Arcanorum and gave them to the Archmage, becoming his foot soldiers in an attempt to destroy the Avalon Clan and take control of Avalon itself. The plan failed, and Macbeth himself was defeated by the awakened Arthur Pendragon. They were released from the Weird Sisters' control, their memories wiped of recent events, placed in a Skiff and sent away from Avalon.
The Skiff landed in Paris, France where Macbeth had a chateau. He fell in love with a mysterious woman named Dominique Destine and quickly married her, only to discover it was Demona who was using him to gain control of her fortune with her new mate Thailog (though in actuality, Thailog was manipulating them both). Macbeth and Demona would have finally destroyed each other had [[Elisa Maza|Elisa Maza not intervened and stopped him. These events were a mixed blessing for Macbeth as he learned he was still capable of life, and life could still be worth living.
Macbeth returned to Manhattan where he became involved in a plot to take control of Excalibur (desiring to be a king again). In the end, Arthur Pendragon proved to be the true owner of Excalibur, and Macbeth respectfully yielded, and agreed to not serve Arthur but to stand at his side as an ally should he ever need it.