Edwards 1947: 154 [
archive.org] has:
Quote
Teti, Pepi I and Merenre built their Pyramids at Saqqara, Teti choosing a site north-east of the Step Pyramid and his two successors moving southwards to sites in the neighbourhood of the Mastaba of Shepseskaf. All three complexes followed eonvcntional lines, but the full details of their construction camiot be ascertained until they have been excavated more completely.
But I can't find anywhere that Edwards suggests any reasons for the choice.
Hermione
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