HPB said that all seven chakras are in the head.
"Our seven Chakras are all situated in the head, and it is these
Master Chakras which govern and rule the seven (for there are seven) principal plexuses in the body, besides the forty-two minor ones to which Physiology refuses that name."
But do we just accept theosophical opinion and ignore virtually all contrary teachings and texts? Traditional teaching places only two in the head. Also, many yogis have practical experience of chakras below the head. Many of the most respectable masters confirm the traditional teaching. This particular notion of Blavatsky's seems suspect to me. Here's an attempt at reconciliation: The seven plexuses pf Blavatsky simply are the seven chakras of traditional teaching. (This part of the dispute would be merely terminological.) Next, the supposed seven chakras in the head will be "petals" or "groups of petals" of the sahasrara, because the crown chakra is indeed the master chakra.--How about that?