Túpac   Amaru   I,  the last    ruler   of  Vilcabamba,
beheaded    in  the plaza   of  Cuzco   in  1572.   Guaman
Poma    de  Ayala,  Felipe. El  primer  nueva   corónica
y   buen    gobierno.   Edited  by  John    V.  Murra   and
Rolena  Adorno, 418/451.    Mexico  City:   Siglo
Veintiuno,  1980    [1615].Vitcos   probably    functioned  as  a   royal   estate  (see   Estates,     Royal)  decades
before  it  became  Manco’s de  facto   capital in  the wake    of  the Spanish invasion.
The  oldest  sector  is  built   of  white   granite,    and     boasts  some    of  the     finest
stonework    in  the     region,     with    a   wall    studded     by  double-jambed   doorways,
probably     the     remains     of  a   royal   compound,   opening     onto    a   small   plaza.  The
central sector, constructed of  fieldstone  set in  mud mortar, may have    served  as
Manco’s  residence.  The     southern    sector  is  the     site    of  a   famous  carved  stone,
shrine, and oracle  known   as  Yurac   Rumi    (white  rock).  Spanish clergy  had the