Question: What state of Germany was the 2012–13 DFB-Pokal defending champions from?

Context paragraphs:
2013 DFB-Pokal Final: The 2012–13 DFB-Pokal tournament came to a close on 1 June 2013 when Bayern Munich played VfB Stuttgart at the Olympiastadion in Berlin.

2010–11 Bundesliga: The 2010–11 Bundesliga was the 48th season of the Bundesliga, Germany's premier football league.  The season started on the weekend of 21 August 2010 with the traditional season opening match involving the defending champions and ended with the last games on 14 May 2011.  The winter break was in effect between weekends around 18 December 2010 and 15 January 2011.  The defending champions were Bayern Munich.  The league had also updated its logo for the season.  The official match ball is Adidas Torfabrik 2010.

2013 DFL-Supercup: The 2013 DFL-Supercup was the fourth DFL-Supercup, an annual football match contested by the winners of the previous season's Bundesliga and DFB-Pokal competitions.  It featured Bayern Munich, winners of the 2012–13 Bundesliga and the 2012-13 DFB-Pokal and, as a result of the former winning both competitions, the Bundesliga runners-up Borussia Dortmund at Signal Iduna Park.

2012–13 Armenian Cup: The 2012–13 Armenian Cup was the 22nd season of Armenia's football knockout competition.  It featured the eight 2012–13 Premier League teams and Alashkert Martuni from the 2012–13 First Division.  The tournament began on 14 November 2012, with Shirak the defending champions, having won their first title the previous season.  Pyunik beat defending champions Shirak 1-0 in the final, winning them their 5th Armenian Independence Cup.  As winners, Pyunik qualify for the first qualifying round of the 2013–14 UEFA Europa League.

2011–12 Tour de Ski: The 2011–12 Tour de Ski was the 6th edition of the Tour de Ski and took place from 29 December 2011 to 7 January 2012.  The race started in Oberhof, Germany, and ended in Val di Fiemme, Italy.  The defending champions were Dario Cologna of Switzerland for the men and Poland's Justyna Kowalczyk (2-time defending champion) for the women.  Both Cologna and Kowalczyk were able to defend their titles as Tour de Ski champions and became the first athletes ever to win the Tour three times.

Borussia Dortmund: Ballspielverein Borussia 09 e.V. Dortmund, commonly known as Borussia Dortmund ] , BVB, or simply Dortmund, is a German sports club based in Dortmund, North Rhine-Westphalia ("Borussia" is the Latin equivalent of Prussia).  The football team is part of a large membership-based sports club with more than 145,000 members, making BVB the second largest sports club by membership in Germany.  Dortmund plays in the Bundesliga, the top tier of the German football league system.  Dortmund is one of the most successful clubs in German football history.

2011 Lamar Hunt U.S. Open Cup: The 2011 Lamar Hunt U.S. Open Cup was the 98th edition of the USSF's annual national soccer championship, running from June through early October.  Seattle Sounders FC, who entered the competition as the two-time defending champions, successfully defended their title again.  They became the third team in U.S. Open Cup history to win three straight U.S. Open Cups (the others being Stix, Baer and Fuller/St.  Louis Central Breweries from 1933 to 1935 and Greek American AA from 1967 to 1969 — this excludes the run of Fall River Marksmen in 1930 and 1931, as the team that won in 1932, New Bedford Whalers, was the result of mergers of teams that included Fall River).  As winner of the Open Cup, the Sounders earned a place in the 2012–13 CONCACAF Champions League Group Stage (the Preliminary Round will be eliminated from the CONCACAF Champions League starting from 2012–13).  The farthest advancing USL Pro team was the Richmond Kickers.

2006 FIFA World Cup qualification: The 2006 FIFA World Cup qualification competition was a series of tournaments organised by the six FIFA confederations.  Each confederation — the AFC (Asia), CAF (Africa), CONCACAF (North, Central America and Caribbean), CONMEBOL (South America), OFC (Oceania), and UEFA (Europe) — was allocated a certain number of the 32 places at the tournament.  A total of 197 teams entered the qualification process for the 2006 FIFA World Cup, for the first time ever, the defending champion (Brazil) did not qualify automatically.  The hosts (Germany) retained their automatic spot.  In 1934, the defending champions (Uruguay) declined to participate and the hosts (Italy) had to qualify, but in the tournaments between 1938 and 2002 (inclusive), the hosts and the defending champions had automatic berths.

2012–13 DFB-Pokal: The 2012–13 DFB-Pokal was the 70th season of the annual German football cup competition.  It began on 17 August 2012 with the first of six rounds and ended on 1 June 2013 with the final at the Olympic Stadium in Berlin.  The defending champions were Borussia Dortmund, but they were beaten by Bayern Munich in the quarter-finals.  Bayern Munich went on to win the competition, defeating VfB Stuttgart 3–2 in the final.  As runners-up, VfB Stuttgart have qualified for the third qualifying round of the 2013–14 UEFA Europa League, since Bayern Munich won the Bundesliga and will be competing in the 2013–14 UEFA Champions League.

2010 DFB-Pokal Final: The 2009–10 DFB-Pokal season came to a close on 15 May 2010 when Bayern Munich played defending champions Werder Bremen at the Olympiastadion in Berlin.  Bayern thrashed Bremen 4-0 with goals from Robben, Olić, Ribéry, and Schweinsteiger.  The title capped off a successful season, with Bayern winning the domestic double of the Fußball-Bundesliga and the DFB-Pokal.  These successes were Bayern's 22nd league and 15th cup titles.  Bayern were also in line for "The Treble" but lost to Internazionale of Milan, 2-0 in the Champions League Final at Madrid's Santiago Bernabéu Stadium on 22 May.

Supporting paragraphs: 2012–13 DFB-Pokal Borussia Dortmund
Answer: North Rhine-Westphalia