nor are these dragon bloodlines ignored , as might be expected by one who imagines a sort of simplistic literal belief ; rather , such an exchange of eggs is held to establish a kind of distant familial relation between the receiving tribe and the donor , much like state marriages , further strengthening ties ... . mokhachane i ( h ) , a sotho chieftain , carved out a relatively minor territory that proved notable for its position on the extremes of the sotho-tswana tribal regions , touching upon xhosa territory to the south , and thus indirectly receiving at least vague intelligence of the growing dutch settlements at the cape , and having some communication with the beleaguered monomotapa kingdoms on the east african coast , the descendants of the zimbabwe-builders .