Ko te pourewa o Rānana, ko te whare rangatira o Her Majesty's Royal Palace and Fortress of the Tower of Rānana, he whare rangatira hītori kei te taha raki o te awa o Thames i waenganui o Rānana. Kei roto i te London Borough o Tower Hamlets, i wehe mai i te pito rawhiti o te maero tapawha o te Taone o Rānana e te waahi tuwhera e mohiotia ana ko Tower Hill. I whakatuhia i te mutunga o te 1066 hei waahanga o te Norman Conquest o Ingarangi. Ko te Pourewa Ma, e whakawhiwhia ana ki te whare rangatira katoa tona ingoa, i hangaia e William te Kaiwhakahua i te 1078 a he tohu kino o te tukino, i tukuna ki Rānana e te rangatira hou o Rānana. I whakamahia te whare rangatira hei whare herehere mai i te 1100 (Ranulf Flambard) tae noa ki te 1952 (Kray Twins), ahakoa ehara i te kaupapa matua. He whare rangatira nui i tona hitori tuatahi, i mahi hei whare rangatira i te mutunga o te rautau 12, i raro i te papaanga o Rānana, i
1066 ngā