The Egyptologist Jochem Kahl recently challenged this hypothesis, identifying Weneg with Raneb. Alternatively, Kaplony reconstructed the Horus-name of Weneg from the Cairo fragment of the Palermo stone as Wenegsekhemwy. In both cases, Horus Sa cannot be the Horus-name of Weneg and the two would not designate the same king. Consequently, Kaplony equated Horus Sa with "njswt-bity Wr-Za-Khnwm", "The king of Upper and Lower Egypt, Wersakhnum" and credited him a reign of 2 months and 23 days during the interregnum between Khasekhemwy and Djoser. However, Kaplony's hypothesis has been undermined by the discovery of clay seals of Djoser in Khasekhemwy's tomb, indicating that the former immediately succeeded and buried the latter. Horus Sa could instead be the Horus-name of Senedj or another 2nd dynasty king, ruling in Memphis during the troubled period following the reign of Nynetjer. However, Egyptologists such as Jean-Philippe Lauer, Pierre Lacau and Ilona Regulski call for caution of the correct reading of the inscriptions. Especially the bird-sign at the top of the "Ka"-house might also depict a swallow, which would make the inscription to be read as "Wer-sa-hut-Ka" ("great protection of the Ka-house"). Regulski prefers the reading as a Horus-bird, though she doesn't explicitly see it as the name of a king. She dates the inscriptions to the end of Khasekhemwy's reign. The burial place of Horus Sa is unknown. Nabil Swelim associated Horus Sa with the unfinished enclosure of Gisr el-Mudir in west Saqqara. This hypothesis has not gained wide acceptance and the Gisr el-Mudir has been attributed to various second dynasty kings, in particular Khasekhemwy. Alternatively, the Egyptologist Joris van Wetering proposed that the gallery tomb used by the high priest of Aten, Meryra-Meryneith, in north Saqqara was originally that of Horus Sa, since an inscription "Ḥwt-k3 Ḥrw-z3" was found in the close vicinity of the tomb.