This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

John Knox (1505–1572), a Scot who had spent time studying under Calvin in Geneva, returned to Scotland and urged his countrymen to reform the Church in line with Calvinist doctrines. After a period of religious convulsion and political conflict culminating in a victory for the Protestant party at the Siege of Leith the authority of the Church of Rome was abolished in favour of Reformation by the legislation of the Scottish Reformation Parliament in 1560. The Church was eventually organised by Andrew Melville along Presbyterian lines to become the national Church of Scotland. King James VI and I moved the Church of Scotland towards an episcopal form of government, and in 1637, James' successor, Charles I and William Laud, the Archbishop of Canterbury, attempted to force the Church of Scotland to use the Book of Common Prayer. What resulted was an armed insurrection, with many Scots signing the Solemn League and Covenant. The Covenanters would serve as the government of Scotland for nearly a decade, and would also send military support to the Parliamentarians during the English Civil War. Following the restoration of the monarchy in 1660, Charles II, despite the initial support that he received from the Covenanters, reinstated an episcopal form of government on the church.
What year did John Knox past away?

The city remained in the hands of Christian troops until 1102, when the Almoravids retook the city and restored the Muslim religion. Although the self-styled 'Emperor of All Spain', Alfonso VI of León and Castile, drove them from the city, he was not strong enough to hold it. The Christians set it afire before abandoning it, and the Almoravid Masdali took possession on 5 May 1109. The event was commemorated in a poem by Ibn Khafaja in which he thanked Yusuf ibn Tashfin for the city's liberation.The declining power of the Almoravids coincided with the rise of a new dynasty in North Africa, the Almohads, who seized control of the peninsula from the year 1145, although their entry into Valencia was deterred by Ibn Mardanis, King of Valencia and Murcia until 1171, at which time the city finally fell to the North Africans. The two Muslim dynasties would rule Valencia for more than a century.
In what year did Christian troops lose control of Valencia?

Agricultural production on the island is difficult given the dry and rocky terrain, but the early settlers managed to produce vegetables, cotton, pineapples, salt, bananas and also fishing. Sweet potato is also grown in patches. The islanders developed commerce through the port of Gustavia. Duty-free port attractions, retail trade, high-end tourism (mostly from North America) and its luxury hotels and villas have increased the island's prosperity, reflected in the high standard of living of its citizens.
What is often difficult on the island?