their influence in the royal court which may have influenced the marriage arrangements. They married some time between 24 September and 22 October 1835 aged 15 in Tehran and she had seven of Baháʼu'lláh's children, of whom only three lived to adulthood. She died in 1886 in ʻAkká, and is buried on Mount Carmel within the vicinity of the Shrine of the Báb. Baháʼu'lláh named her his "perpetual consort" and her son as his vicar. Baháʼís regard the children of Ásíyih and Baháʼu'lláh to be the Baháʼí "holy family". Her children were: ʻAbbas Better known as ʻAbdu'l-Bahá, ʻAbbas was born in 1844 and died in 1921. He was the oldest child of Ásíyih and Baháʼu'lláh. He was variously referred to by Baháʼu'lláh as "Mystery of God", "The Master", "Perfect Exemplar" and "the Most Great Branch". After Baháʼu'lláh died on 29 May 1892, the Will and Testament of Baháʼu'lláh named ʻAbdu'l-Bahá as Centre of the Covenant, successor and interpreter of Baháʼu'lláh's writings. During his time as head of the religion, while still a prisoner of the Ottoman Empire, he met with many pilgrims and was in constant communication with Baháʼís around the world. After the 1908 Young Turks revolution freed all political prisoners in the Ottoman Empire, ʻAbdu'l-Bahá was freed from imprisonment and in 1910, with the freedom to leave the country, he embarked on a three-year journey to Egypt, Europe, and North America, spreading the Baháʼí message. On 27 April 1920, he was awarded a knighthood by the British Mandate of Palestine for his humanitarian efforts during World War I. ʻAbdu'l-Bahá died on 28 November 1921, and he is currently buried within one of the rooms at the Shrine of the Báb. Bahíyyih Bahíyyih Khánum was born in 1846 and was the eldest daughter of Baháʼu'lláh and Ásíyih Khánum. She was entitled the Greatest holy Leaf. She was particularly dear to her father and is seen within the Baháʼí Faith as one of the greatest women to have lived. She stood by and remained faithful to the Centers of the Covenant over years of infighting within Baháʼu'lláh's family that led to the expelling of many of them. She was given the position of acting head of the religion repeatedly when ʻAbdu'l-Bahá (during periods between 1910 and 1913), and Shoghi Effendi (during periods between 1922 and 1924), were absent from the Baháʼí World Centre in Haifa. Shoghi Effendi in particular felt