Here's the original story (history) written by Holinshed, that Shakespeare used for Macbeth.
Shortlie after happened a strange and vncouth woonder, which afterward was the cause of much trouble in the realme of Scotland, as ye shall after heare.
It fortuned as Makbeth and Banquho iournied towards Fores, where the king then laie, they went sporting by the waie togither without other companie, saue onelie themselues, passing thorough the woods and fields, when suddenlie in the middest of a laund, there met them three women in strange and wild apparell, resembling creatures of elder world, whome when they attentiuelie beheld, woondering much at the sight, the first of them spake and said:
"All haile, Makbeth, thane of Glammis!" (for he had latelie entered into that dignitie and office by the death of his father Sinell). The second of them said: "Haile, Makbeth, thane of Cawder!" But the third said: "All haile, Makbeth, that heerafter shalt be king of Scotland!"
Then Banquho: "What manner of women" (saith he) are you, that seeme so little fauourable vnto me, whereas to my fellow heere, besides high offices, ye assigne also the kingdome, appointing foorth nothing for me at all?"
"Yes" (saith the first of them), "we promise greater benefits vnto thee, than vnto him, for he shall reigne in deed, but with an vnluckie end: neither shall he leaue anie issue behind him to succeed in his place, where contrarilie thou in deed shalt not reigne at all, but of thee those shall be borne which shall gouerne the Scotish kingdome by long order of continuall descent."
Herewith the foresaid women vanished immediatlie out of their sight. This was reputed at the first but some vaine fantasticall illusion by Makbeth and Banquho, insomuch that Banquho would call Mackbeth in iest, king of Scotland; and Mackbeth againe would call him in sport likewise, the father of manie kings. But afterwards the common opinion was, that these women were either the weird sisters, that is (as ye would say) the goddesses of destinie, or else some nymphs or feiries, indued with knowledge of prophesie by their necromanticall science, bicause euerie thing came to passe as they had spoken. For shortlie after, the thane of Cawder being condemned at Fores of treason against the king committed; his lands, liuings, and offices were giuen of the kings liberalitie to Mackbeth.
The same night after, at supper, Banquho iested with him and said: "Now Mackbeth thou hast obteined those things which the two former sisters prophesied, there remaineth onelie for thee to purchase that which the third said should come to passe."
Wherevpon Mackbeth reuoluing the thing in his mind, began euen then to deuise how he might atteine to the kingdome: but yet he thought with himselfe that he must tarie a time, which should aduance him thereto (by the diuine prouidence) as it had come to passe in his former preferment.
But shortlie after it chanced that king Duncane, hauing two sonnes by his wife which was the daughter of Siward earle of Northumberland, he made the elder of them, called Malcome, prince of Cumberland, as it were thereby to appoint him his successor in the kingdome, immediatlie after his deceasse.
Mackbeth sore troubled herewith, for that he saw by this means his hope sore hindered (where, by the old lawes of the realme, the ordinance was, that if he that should succeed were not of able age to take the charge vpon himselfe, he that was next of blood vnto him should be admitted) he began to take counsell how he might vsurpe the kingdome by force, having a iust quarrell so to doo (as he tooke the matter) for that Duncane did what in him lay to defraud him of all maner of title and claime, which he might in time to come, pretend vnto the crowne.
The woords of the three weird sisters also (of whom before ye haue heard) greatlie incouraged him herevnto, but speciallie his wife lay sore vpon him to attempt the thing, as she that was verie ambitious, burning in vnquenchable desire to beare the name of a queene. At length therefore, communicating his purposed intent with his trustie friends, amongst whome Banquho was the chiefest, vpon confidence of their promised aid, he slue the king at Enuerns, or (as some say) at Botgosuane, in the sixt yeare of his reigne.
Then hauing a companie about him of such as he had
made priuie to his enterprise, he caused himselfe to be proclaimed king, and foorthwith went vnto Scone, where (by common consent) he receiued the inuesture of the kingdome according to the accustomed maner. The bodie of Duncane was first conueied vnto Elgine, & there buried in kinglie wise; but afterwards it was remoued and conueied vnto Colmekill, and there laid in a sepulture amongst his predecessors, in the yeare after the birth of our Sauiour, 1046.
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