The Collaborative International Dictionary of English v.0.48:

Requietory \Re*qui"e*to*ry\ (r?-kw?"?-t?-r?), n. [L.
   requietorium, fr. requiescere, requietum, to rest. See Re-,
   and Quiesce.]
   A sepulcher. [Obs.] --Weever.
   [1913 Webster]