Yada'il Dharih I in the context of List of rulers of Saba and Himyar

Sirwah (OSA: Ṣrwḥ, Arabic: صرواح خولان Ṣirwāḥ Ḫawlān) was, after Ma'rib, the most important economical and political center of the Kingdom of Saba at the beginning of the 1st century BC, on the Arabian Peninsula. Ṣirwāḥ was surrounded by a fortified wall. The city layout inside the oasis included a number of large buildings. It’s also a part of Khawlan.

The ruins of Ṣirwāḥ are located 40 km west of Ma'rib. The town was well protected by its position in the mountains, but at the same time put limits on its development. As a result, Ṣirwāḥ quickly lost its position as a capital, which was taken over by Ma’rib, which was in an important economical center since it was located on the incense route. The town nevertheless remained an important centre for the Sabaeans, as shown by the large number of temple buildings. It was also the site chosen by King Yada'il Dharih I to build an important temple to Almaqah about the year 700 BC.