Question: A German–Finnish former Formula One racing driver won The 2014 Monaco Grand Prix on what date?

full_context: Document 1: 2015 Monaco GP2 Series round: The 2015 Monaco GP2 Series round was a pair of motor races held on 22 and 23 May 2015 at the Circuit de Monaco, Monte Carlo, Monaco as part of the GP2 Series. It was the third round of the 2015 GP2 season and was run in support of the 2015 Monaco Grand Prix. The first race, a 40-lap feature event, was won by ART Grand Prix driver Stoffel Vandoorne who started from fourth position. Alexander Rossi finished second for Racing Engineering, and MP Motorsport driver Sergio Canamasas came in third. Status Grand Prix driver Richie Stanaway won the second event, a 30-lap sprint race, ahead of Trident's Raffaele Marciello and Sergey Sirotkin of the Rapax team.
Document 2: Formula One drivers from Finland: There have been nine Formula One drivers from Finland who have taken part in races since the championship began in 1950. Three drivers have won the World Drivers' Championship, with Keke Rosberg being the first in 1982. Mika Häkkinen won it in 1998 and retained it in 1999, becoming the first Finnish double world champion. Kimi Räikkönen is the most recent Finnish champion having won the title in 2007.
Document 3: Valtteri Bottas: Valtteri Viktor Bottas (] ; born 28 August 1989) is a Finnish racing driver currently competing in Formula One with Mercedes. Bottas previously drove for Williams from 2013 to 2016. He currently resides in Monaco. In his first four races for Mercedes, Bottas achieved his first Formula One pole position (at the 2017 Bahrain Grand Prix) and took his first victory at the following event, the 2017 Russian Grand Prix.
Document 4: 2012 Monaco Grand Prix: The 2012 Monaco Grand Prix (formally the Formula 1 Grand Prix de Monaco 2012) was a Formula One motor race that took take place in the principality of Monaco on 27 May 2012. It was the sixth round of the 2012 season, and the seventieth running of the Monaco Grand Prix. The race was supported by the GP2, GP3 and Formula Renault 3.5 series. Mark Webber's victory created a new record for Formula One in that there had never been six different winners of the opening six Grands Prix of the season before. Mercedes' Nico Rosberg came in second place, his second podium in the 2012 season, and Ferrari's Fernando Alonso third and taking the Formula One championship lead by three points over Vettel and Webber.
Document 5: Lewis Hamilton: Lewis Carl Davidson Hamilton, MBE, (born 7 January 1985) is a British racing driver who races in Formula One for the Mercedes AMG Petronas team. A three-time Formula One World Champion, he is often considered the best driver of his generation and widely regarded as one of the greatest Formula One drivers in the history of the sport. He won his first World Championship title with McLaren in 2008 before moving to Mercedes, where he won back-to-back titles in 2014 and 2015. Hamilton has more race victories than any other British driver in the history of Formula One ( ), and holds records for the all-time most career points ( ), the most wins at different circuits (24), the all-time most pole positions ( ), as well as achieving the joint-most podium finishes in a season (17). Hamilton is also the only driver to have won at least one Grand Prix in every season he has competed in.
Document 6: 2005 Monaco Grand Prix: The 2005 Monaco Grand Prix (formally the LXIII Grand Prix de Monaco) was a Formula One motor race held on 22 May 2005 at the Circuit de Monaco in Monte Carlo, Monaco. The 78-lap race was the sixth round of the 2005 Formula One season and the 63rd running of the Monaco Grand Prix. It was won by polesitter and McLaren driver Kimi Räikkönen. Williams driver Nick Heidfeld completed the race in second position whilst his team-mate, Mark Webber, completed the podium by finishing in third place.
Document 7: 2017 Monaco Grand Prix: The 2017 Monaco Grand Prix (formally known as the Formula 1 Grand Prix de Monaco 2017) was a Formula One motor race held on 28 May 2017 at the Circuit de Monaco, a street circuit that runs through the Principality of Monaco. It was the sixth round of the 2017 season, the seventy-fifth time that the Monaco Grand Prix has been held, and the sixty-fourth time it has been a round of the Formula One World Championship since the inception of the series in .
Document 8: 2014 Austrian Grand Prix: The 2014 Austrian Grand Prix (formally the Formula 1 Grosser Preis Von Österreich 2014) was a Formula One motor race held on 22 June 2014 at the Red Bull Ring in Spielberg, Austria. It was the eighth round of the 2014 season and the 28th Austrian Grand Prix and the first to be held since 2003. The 71-lap race was won by Mercedes driver Nico Rosberg after starting from third position. His teammate Lewis Hamilton finished second with Valtteri Bottas third for the Williams team.
Document 9: Nico Hülkenberg: Nicolas Hülkenberg (] , born 19 August 1987) is a German professional racing driver currently racing for the Renault Sport F1 Team. In 2015, he also contested in two rounds of the 2015 FIA World Endurance Championship season for Porsche, winning the 2015 24 Hours of Le Mans in his first attempt. He was the 2009 champion of the GP2 Series, and is a previous champion of both the Formula 3 Euro Series and A1 Grand Prix, as part of A1 Team Germany. He is one of three drivers since 2005 to win the GP2 series championship in his debut season, the others being Lewis Hamilton and Nico Rosberg. s of September 2017 , Hülkenberg holds the record for the most Formula One career starts without a podium finish, a record he broke when he failed to finish in his 129th race (the 2017 Singapore Grand Prix) and in so doing passed Adrian Sutil's previous record of 128.
Document 10: Nico Rosberg: Nico Erik Rosberg (born 27 June 1985) is a German–Finnish former Formula One racing driver and current Formula One World Champion who drove for Williams F1 and Mercedes AMG Petronas under the German flag. Born in Germany to Finnish former world champion Keke Rosberg and his German wife Sina, he holds dual nationality, and briefly competed for Finland early in his racing career. However, he does not speak Finnish, although he is reported to be fluent in five languages.
Document 11: Nick Heidfeld: Nick Lars Heidfeld (born 10 May 1977) is a German professional racing driver.
Document 12: 2016 Monaco Grand Prix: The 2016 Monaco Grand Prix (formally known as the Formula 1 Grand Prix de Monaco 2016) was a Formula One motor race held on 29 May 2016 at the Circuit de Monaco, a street circuit that runs through the Principality of Monaco. It was the sixth round of the 2016 season, and marked the seventy-fourth time that the Monaco Grand Prix had been held, as well as the sixty-third time it had been held as a round of the Formula One World Championship since the series inception in .
Document 13: 2017 Monaco ePrix: The 2017 Monaco ePrix (formally the 2017 FIA Formula E Monaco ePrix) was a Formula E motor race held on 13 May 2017 at the Circuit de Monaco in Monte Carlo before a crowd of 18,000 people. It was the fifth round of the 2016–17 Formula E season and the second running of the event. The 51-lap race was won by e.Dams-Renault driver Sébastien Buemi after starting from pole position. Lucas di Grassi finished second for Audi Sport ABT and Mahindra driver Nick Heidfeld came in third.
Document 14: Formula One drivers from Germany: There have been 52 Formula One drivers from Germany including three world champions, one of whom is currently racing in the sport. Michael Schumacher holds many records in F1 including the most world championship titles and the most consecutive titles. In 2008 Sebastian Vettel became the youngest ever driver to win a race (which was later broken) and, in 2010, became the youngest world championship winner. In 2016, Nico Rosberg became the third driver from Germany to win the F1 drivers' championship. There are currently three German race drivers in Formula One.
Document 15: 2014 Monaco Grand Prix: The 2014 Monaco Grand Prix (formally the Formula 1 Grand Prix de Monaco 2014) was a Formula One motor race held on 25 May at the Circuit de Monaco in Monte Carlo. It was the sixth race of the 2014 Formula One season and the 61st running of the event as part of the Formula One World Championship. The 78-lap race was won by Mercedes driver Nico Rosberg after starting from pole position. His teammate Lewis Hamilton finished second and Red Bull Racing driver Daniel Ricciardo came in third. It was Rosberg's second victory of the season, his second consecutive win at Monaco, and the fifth of his career.
ground_truth: 25 May