Please answer the following question: Information: - A reign is the period of a person's or dynasty's occupation of the office of monarch of a nation (e.g., Saudi Arabia, Belgium, Andorra), of a people (e.g., the Franks, the Zulus) or of a spiritual community (e.g., Roman Catholicism, Tibetan Buddhism, Nizari Ismailism). In most hereditary monarchies and some elective monarchies (e.g., Holy Roman Empire) there have been no limits on the duration of a sovereign's reign or incumbency, nor is there a term of office. Thus, a reign usually lasts until the monarch dies, unless the monarchy itself is abolished or the monarch abdicates or is deposed. - Regnal numbers are ordinal numbers used to distinguish among persons with the same name who held the same office. Most importantly, they are used to distinguish monarchs. An "ordinal" is the number placed after a monarch's regnal name to differentiate between a number of kings, queens or princes reigning the same territory with the same regnal name. - Abu'l - Qasim Isa ibn az - Zafir ( Arabic : ; 1149 -- 1160 ) , better known by his regnal name al - Fa'iz bi-Nasr Allah ( ) , was the thirteenth and penultimate caliph of the Fatimid dynasty . He was believed by the Hafizi Ismailis to be an imam . He succeeded his father az - Zafir as a child , with vizir Tali ibn Russik as regent . Tali attempted to address the dominance of the Crusaders in Palestine through an alliance of the Fatimids and the Zengids of Syria under Nureddin ( 1140 -- 1174 ) . Al - Fa'izz never exercised power in his own right and died aged 11 , succeeded by his brother al - Adid , also a minor . - A monarch is the sovereign head of state in a monarchy. A monarch may exercise the highest authority and power in the state, or others may wield that power on behalf of the monarch. Typically a monarch either personally inherits the lawful right to exercise the state's sovereign rights (often referred to as "the throne" or "the crown") or is selected by an established process from a family or cohort eligible to provide the nation's monarch. Alternatively, an individual may become monarch by conquest, acclamation or a combination of means. A monarch usually reigns for life or until abdication. - A regnal name, or reign name, is a name used by some monarchs and popes during their reigns, and used subsequently to refer to them. The term is simply the adjective "regnal", of or relating to a reign, monarch, or kingdom, modifying "name". Since ancient times, monarchs have frequently, but not always, chosen to use a different name from their original name when they accede to the monarchy. The regnal name is usually followed by a regnal number (ordinal), usually written as a Roman numeral (VI rather than 6), to provide a unique identification for that monarch among other monarchs of that realm. In some cases, the monarch has more than one regnal name, but the regnal number is based on only one of those names, for example Charles X Gustav of Sweden, George Tupou V of Tonga. If a monarch reigns in more than one realm, he or she may carry different ordinals in each one, as they are each assigned chronologically, and some realms may have had different numbers of rulers of the same regnal name previously. For example, the same person was both King James I of England (along with Ireland) and King James VI of Scotland. - Al-fz (c. 1076 8 October 1149),, Abu-l-Maymun Abd-al-Majid Al-Hfiz li-din-Allh, son of Muhammad ibn Al-Mustansir Billah, 11th Fatimid Caliph, was the eleventh Caliph of the Fimids (r. 11301149) and 21st Imam of the Hafizi Ismaili sect. - Tonga (or ; Tongan: "Puleanga Fakatui o Tonga"), officially the Kingdom of Tonga, is a Polynesian sovereign state and archipelago comprising 169 islands of which 36 are inhabited. The total surface area is about scattered over of the southern Pacific Ocean. It has a population of 103,000 people of whom 70% reside on the main island of Tongatapu. - The Hafizi was a branch of Mustaali Ismailism that believed the current ruler of the Fatimid Caliphate after the reign of Al-Amir Bi-Ahkamillah, Al-Hafiz was also the Imam of the Time as well as his descendants. The Hafizi sect disappeared completely after the collapse of the Fatimid Caliphate in 567 AH/1171 CE as they joined the Taiyabi sect. - The pope (from "pappas", a child's word for "father") is the Bishop of Rome and, therefore, the leader of the worldwide Catholic Church. The primacy of the Roman bishop is largely derived from his role as the traditional successor to Saint Peter, to whom Jesus is supposed to have given the keys of Heaven and the powers of "binding and loosing", naming him as the "rock" upon which the church would be built. The current pope is Francis, who was elected on 13 March 2013, succeeding Benedict XVI. - Charles X Gustav, also Carl Gustav (8 November 1622 13 February 1660), was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Zweibrucken-Kleeburg and Catherine of Sweden. After his father's death he also succeeded him as Pfalzgraf. He was married to Hedwig Eleonora of Holstein-Gottorp, who bore his son and successor, Charles XI. Charles X Gustav was the second Wittelsbach king of Sweden after the childless king Christopher of Bavaria (14411448) and he was the first king of the Swedish "Caroline era", which had its peak during the end of the reign of his son, Charles XI. He led Sweden during the Second Northern War, enlarging the Swedish Empire. By his predecessor Christina, he was considered "de facto" Duke of Eyland (Oland) before ascending to the Swedish throne. - George Tupou V (Tongan: Siaosi Tupou, full name: Siaosi Tufahau Manumataongo Tukuaho Tupou; 4 May 194818 March 2012) was the King of Tonga from the death of his father Tufahau Tupou IV in 2006 until his own death six years later. - An imam (', plural: ') is an Islamic leadership position. It is most commonly in the context of a worship leader of a mosque and Muslim community by Sunni Muslims. In this context, imams may lead Islamic worship services, serve as community leaders, and provide religious guidance. For Shi'a Muslims, the imam has a more central meaning and role in Islam through the concept of Imamah; the term is only applicable to those members of the house of the prophet ahl al-Bayt, designated as infallibles. Given the information above, choose from the list below the object entity that exhibits the relation 'position held' with the subject 'al-fa'iz bi-nasr allah'. Choices: - 4 - bishop - caliph - count palatine - duke - fatimid caliph - king - leader - monarch - pope - ruler - sovereign
A:
fatimid caliph