Ziri ibn Atiyya in the context of "Maghrawa"

Hadjar al-Nasr (Arabic: حجر النسر, lit. 'the vulture's rock') is an ancient fortress located in northern Morocco. It was constructed in the 10th century by the Idrisid dynasty. The archaeological site is situated on a rocky crest overlooking the headwaters of a tributary of the Loukkos River around 40 km almost due east of the modern city of Larache.

The fortress was probably built by Muhammad ibn Idris or one of his sons during the 9th century, and was finally destroyed in 996 by the Maghrawa chief Ziri ibn Atiyya. It served as a haven for the Idrisid dynasty's rulers, and sometimes alternated with al-Basra as their capital.