Ali al-Sulayhi was killed by Najah's sons on his way to Mecca in 1084. His son Ahmed Al-Mukarram led an army to Zabid and killed 8,000 of its inhabitants. He later installed the Zurayids to govern Aden. al-Mukarram, who had been afflicted with facial paralysis resulting from war injuries, retired in 1087 and handed over power to his wife Arwa al-Sulayhi. Queen Arwa moved the seat of the Sulayhid dynasty from Sana'a to Jibla, a small town in central Yemen near Ibb. Jibla was strategically near the Sulayhid dynasty source of wealth, the agricultural central highlands. It was also within easy reach of the southern portion of the country, especially Aden. She sent Ismaili missionaries to India, where a significant Ismaili community was formed that exists to this day. Queen Arwa continued to rule securely until her death in 1138.