After Duke Otto III of Pomerania-Stettin had died of the plague in 1464, Frederick used his claim use suzerainty of Brandenburg over Pomerania, an issue which had never been clarified, to lay claim on Pomerania-Stettin. On 21 January 1466, the Dukes and the Elector concluded the Treaty of Soldin, in which the Elector enfeoffed the Dukes with Pomerania and they recognised him as their liege lord. The Pomeranian Dukes, however, did not meet their treaty obligations and the conflict erupted again. In 1468, Brandenburg captured several Pomeranian towns on both sides of the Oder. After an unsuccessful siege of Ueckermünde, the two sides agreed to a cease-fire. Peace negotiations in Piotrków Kujawski only resulted in an extension of the cease-fire. In May 1470, Eric II invaded the Neumark and started looting. In the meantime, Emperor Frederick III acknowledged the claims of Brandenburg. The emperor enfeoffed Frederick II with Pomerania-Stettin and order Eric II and Wartislaw X to recognise Frederick as their liege lord. Duke Henry IV of Mecklenburg mediation, and at the end of May 1472, a lasting peace treaty was signed at Prenzlau. The Dukes and the Estates of Pomerania had to pay homage to the Frederick II, who was also allowed to keep the territories he had conquered. The Dukes retained a number of law professors from the University of Greifswald to review the peace treaty. Among them were Johannes Parleberg, Matthias von Wedel, Sabel Siegfried the Younger, Hermann Slupwachter, Johann Elzing, Heinrich Zankenstede and Georg Walter. Gerwin Rönnegarwe and Hertnidt vom Stein also played a role.

How many years passed between the death of Duke Otto III and the start of lasting peace?
A: 8

In the county, the age distribution of the population shows 27.90% under the age of 18, 6.80% from 18 to 24, 31.60% from 25 to 44, 23.70% from 45 to 64, and 10.10% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 96.00 males. For every 100 females age 18 and over, there were 92.50 males.

How many percent were not from 45 to 64?
A: 76.3

On 28 May 1975 James Whetter left MK to form the Cornish Nationalist Party which was campaigning for full Cornish independence. The party declined in the 1980s and was close to collapse by 1990. It did not contest the 1984 European Parliament election; it received 1.9% of the vote in Cornwall and West Plymouth in the 1989 election. During this period, the party focussed on its opposition to the creation of a South West England region. It also campaigned against the construction of a nuclear station at Luxulyan and proposals to increase house-building in Cornwall. In 1988, MK established the Campaign for a Cornish Constituency, which won the support of Cornwall County Council, all the district authorities, several Cornish organisations and three of Cornwall's five MPs. The campaign was well-publicised, attained national attention, and collected over 3,000 signatures in three months. Loveday Jenkin was elected its leader in 1990. The party's vote share declined further to 1.5% of the vote in the 1994 European Parliament election, in the new constituency of Cornwall and West Plymouth. In 1996, MK published 'Cornwall 2000 - The Way Ahead', its most detailed manifesto to date. On 4 October 1997, at the Mebyon Kernow National Conference, Jenkin was replaced by Dick Cole as the leader of MK.

How many years after MK established the Campaign for a Cornish Constituency was Loveday Jenkin elected its leader?
A:
2