Arwa was born in 1047 or 1048
CE (440
AH) to Ahmad ibn al-Qasim al-Sulayhi and al-Raddah al-Sulayhi. In 1065/6 (458 AH), around the age of 18, Arwa was married to her paternal cousin, the
wali al-ahd (crown prince) al-Mukarram Ahmad. Taef El-Azhari, however, says that this assertion is not supported by contemporary sources – while they do portray Asma as a highly esteemed individual, there is only one instance of her actually setting policy: in 1063, when she got her brother As'ad appointed as deputy over the
Tihama region. In the 1094
schism, Arwa supported Al-Musta'li to be the rightful successor to Al-Mustansir Billah. Due to the high opinion in which Arwa was held in Yemen and western
India, these two areas followed her in regarding Imām al-Musta'li as the new Fatimid Caliph. Through her support of
Imām at-Tāyyīb she became head of a new grouping that became known as the
Tayyibi Ismaili. Her enemies in Yemen in turn gave their backing to
Al-Hafiz but they were unable to remove Sayyadah Arwa from power. The Tayyibi Ismaili believe that Imām
al-Āmir bi-Ahkām Allāh sent a letter to Arwa commissioning her to appoint a vicegerent for his infant son, Imām Tayyib. In accordance with this wish, she appointed
Zoeb bin Moosa as ''
Da'i al-Mutlaq'', the vicegerent of the secluded
Abū'l-Qāsim al-Tayyib. The line of succession continues down to today through the various Tayyibi Duat.
Hafizi Ismāʿīlīsm, the following of al-Hafiz, intimately tied to the Fatimid regime in Cairo, disappeared after the collapse of the Caliphate in 1171 and the
Ayyubid invasion of southern Arabia in 1173. But the Tayyibi dawah, initiated by Arwa, survived in Yemen with its headquarters remaining in Haraz. Due to the close ties between Sulayhid Yemen and Gujarat, the Tayyibi cause was also upheld in western India and Yemen, which gradually became home to the largest population of Tayyibis, known there as
Sulaymani,
Dawoodi Bohra and
Alavi Bohra. The fact that Arwa had been chosen as
hujjah necessitated theological explanations for why the infallible imam would choose a woman for this position. One source is the
Ghāyat al-Mawālīd by
al-Sultan al-Khattab, a high-ranking da'i who played an important political and military role in the last years of Arwa's rule. Al-Khattab presented an original argument – albeit one grounded in existing Isma'ili theological principles – to justify Arwa in this role. According to him, a person's actual sex is not determined by the bodily "envelope" they physically have. Rather, their sex can only be discerned through their actions. It was possible, then, for there to be people who occupied the higher, or "male", level despite having the physical form of a woman; such as
Fatimah or
Khadijah. Therefore, he wrote that it was unfair to consider those with a female body envelope as spiritually inferior. A
dhakar is spiritually perfect and has reached the highest levels of spiritual knowledge, while an
unthā is on a lower level and can still progress with help of a
dhakar. Once reaching the highest level of religious knowledge, he would immediately become a
dhakar even if having the bodily envelope of a woman. Arwa, he argued, had done just that since al-Mustansir's appointment of her as
hujjah was because she had reached such a level of wisdom, so there was no contradiction between her sex and her rank. Al-Khattab said that a person must be judged on their knowledge and not based on physical appearance. Al-Khattab was basically claiming that Arwa was male in essence.
Building works and economic policy In Sana'a, Arwa had the grand mosque expanded, and the road from the city to
Samarra improved. In Jibla, she had a new
Palace of Queen Arwa and the
eponymous mosque constructed. She is also known to have built numerous schools throughout her realm. Arwa improved the economy, taking an interest in supporting agriculture. ==Death and legacy==