IN: Prince Grigory Aleksandrovich Potemkin-Tavricheski (Russian: Grigorii Aleksandrovich Potiomkin-Tavricheskii; 'Potyomkin', r Grigoriy Aleksandrovich Potyomkin-Tavricheskiy; October 11 [O.S. September 30] 1739 - October 16 [O.S. October 5] 1791) was a Russian military leader, statesman, nobleman and favourite of Catherine the Great. He died during negotiations over the Treaty of Jassy, which ended a war with the Ottoman Empire that he had overseen. Potemkin was born into a family of middle-income noble landowners.

Potemkin "exuded both menace and welcome"; he was arrogant, demanding of his courtiers and very changeable in his moods but also fascinating, warm and kind. It was generally agreed among his female companions that he was "amply endowed with 'sex appeal'". Louis Philippe, comte de Segur described him as "colossal like Russia", "an inconceivable mixture of grandeur and pettiness, laziness and activity, bravery and timidity, ambition and insouciance". The internal contrast was evident throughout his life: he frequented both church and numerous orgies, for example. In Segur's view, onlookers had a tendency to unjustly attribute to Catherine alone the successes of the period and to Potemkin the failures. An eccentric workaholic, Potemkin was vain and a great lover of jewelry (a taste he did not always remember to pay for), but he disliked sycophancy and was sensitive about his appearance, particularly his lost eye. He only agreed to having portraits made of him twice, in 1784 and again in 1791, both times by Johann Baptist von Lampi and from an angle which disguised his injury.  Potemkin was also an intellectual. The Prince of Ligne noted that Potemkin had "natural abilities [and] an excellent memory". He was interested in history and generally knowledgeable. Potemkin loved the classical music of the period, as well as opera. He liked all food, both peasant and fine; particular favorites included roast beef and potatoes, and his anglophilia meant that English gardens were prepared wherever he went. A practical politician, his political ideas were "quintessentially Russian", and he believed in the superiority of the Tsarist autocracy (he once described the French revolutionaries as "a pack of madmen"). Potemkin's habits included biting his nails, to the point where he developed hangnail. One evening, at the height of his power, Potemkin declared to his dinner guests:  Everything I have ever wanted, I have... I wanted high rank, I have it; I wanted medals, I have them; I loved gambling, I have lost vast sums; I liked giving parties, I've given magnificent ones; I enjoy building houses, I've raised palaces; I liked buying estates, I have many; I adore diamonds and beautiful things - no individual in Europe owns rarer or more exquisite stones. In a word, all my passions have been sated. I am entirely happy!  Ultimately Potemkin proved a controversial figure. Criticisms include "laziness, corruption, debauchery, indecision, extravagance, falsification, military incompetence and disinformation on a vast scale" but supporters hold that only "the sybaritism [devotion to luxury] and extravagance... are truly justified", stressing Potemkin's "intelligence, force of personality, spectacular vision, courage, generosity and great achievements". Though not a military genius, he was "seriously able" in military matters. Potemkin's contemporary Segur was quick to criticise, writing that "nobody thought out a plan more swiftly [than Potemkin], carried it out more slowly and abandoned it more easily". Another contemporary, the Scotsman Sir John Sinclair, added that Potemkin had "great abilities" but was ultimately a "worthless and dangerous character". Russian opponents such as Semyon Vorontsov agreed: the Prince had "lots of intelligence, intrigue and credit" but lacked "knowledge, application and virtue".

So he could be nice too?

OUT: demanding of his courtiers and very changeable in his moods but also fascinating, warm and kind.

input: In February 2009, the then captain of the Sri Lankan side, Mahela Jayawardene announced that he would step down from captaincy "in the best interests of the Sri Lankan team". He said he believed that it would give his successor around two years to build up to the 2011 Cricket World Cup. Therefore, at the age of 31 and with the experience of 80 Tests and 246 ODIs, Sangakkara succeeded Jayawardene as Sri Lanka's captain in all formats of the game. His first engagement in the role was the 2009 ICC World Twenty20 hosted by England in June. Sri Lanka became runners-up in the series after winning all the game in group and knock-out stages and being defeated by Pakistan in the final. Sangakkara made 64 not-out in the final, but was unable to take Sri Lanka for the championship. Sri Lanka failed to reach to the knock-out stage of the ICC Champions Trophy in September 2009. The next Indian tour proved to be disastrous for the team, with Sri Lanka being beaten by India in Test series 2-0 and ODI series 3-1.  Sri Lankan team under the captaincy of Sangakkara gained momentum and won the next Tri-series in Bangladesh, Zimbabwe and Sri Lanka, beating India as well. The Sri Lankans' tour of Australia proved to be very successful, in winning both the T20 and ODI series. This was Sri Lanka's first ever series victory in Australia.  A month in advance of the 2011 World Cup in March, Sangakkara decided that he would resign the captaincy after the tournament. Sri Lanka reached the final of the tournament. Throughout the tournament Sangakkara was in prolific form with the bat scoring 465 runs from 9 matches and was the third highest run-scorer behind teammate Tillakaratne Dilshan and India's Sachin Tendulkar. Days after guiding Sri Lanka to the finals of the World Cup, Sangakkara announced to the public he was stepping down as captain of the T20 and ODI teams. He offered to continue as Test captain if deemed necessary for transition to new skipper, but Dilshan was appointed captain across all formats. Reflecting on the decision afterwards, he said that "captaining Sri Lanka is a job that ages you very quickly ... It's rarely a job you will last long in ... I also had a two-year stint, and I enjoyed it at times, certainly on the field where our results showed we were one of the top two sides in the world for one-and-a-half years, especially in the shorter form of the game."  The same year, he was named the ODI Cricketer of the Year at the ICC awards ceremony. In 2012, he was honored as one of the Wisden Cricketers of the Year.

Answer this question "How did he become captain?"
output:
In February 2009, the then captain of the Sri Lankan side, Mahela Jayawardene announced that he would step down from captaincy "in the best interests of the Sri Lankan team".