Question: Who is the father of Blair's baby in season 5 of the series that Double Identity is part of?

full_context: Document 1: Gossip Girl (season 3): As the summer is drawing to a close, Blair and Chuck are madly in love and adjusting to their new ``in a relationship ''status, breaking all traditional rules of dating as would be expected. Meanwhile, Serena returns from her European adventure with many secrets to hide and a complicated relationship with Carter Baizen. Nate returns from his travels with a mysterious brunette, Bree Buckley (guest star Joanna Garcia) in town. With Lily away in California visiting her mother, Rufus, Dan, and Jenny spent the summer in the Hamptons, adjusting to the van der Woodsen's glamorous lifestyle surprisingly faster than any of them expected. Vanessa introduces her new boyfriend, Scott, to Dan and Rufus.
Document 2: Chuck Bass: Chuck Bass Gossip Girl character Ed Westwick as Charles Bass First appearance Novel: Gossip Girl Television: ``Pilot ''(episode 1.01) Last appearance Novel: I Will Always Love You Television:`` New York, I Love You XOXO'' (episode 6.10) Created by Character Cecily von Ziegesar Developed for Television Josh Schwartz Stephanie Savage Portrayed by Ed Westwick Information Full name Charles Bartholomew Bass Nickname (s) Chuck (by everyone except Lily) Aliases Television: Henry Prince Occupation Television: Entrepreneur High school student (at St. Jude's; graduated) Title Television: CEO of Bass Industries Family Television: Bartholomew ``Bart ''Bass (father; deceased) Elizabeth Fisher (mother; alias: Evelyn Bass) Lillian`` Lily'' van der Woodsen (adoptive mother; née Rhodes) Serena van der Woodsen (adoptive sister) Eric van der Woodsen (adoptive brother) Spouse (s) Television: Blair Waldorf (wife) Children Television: Henry Bass (with Blair; flash - forward)
Document 3: Blair Waldorf: In 2007, Gossip Girl was adapted for television. According to Cecily von Ziegesar, the television character is largely faithful to the original. Among the aspects to be maintained are her admiration for Audrey Hepburn and her interest in Yale University. However, the series is also noted for its deviations from the source material, including the exclusion of Blair's brother Tyler. The show also explores romances between Blair and multiple male leads, resulting in occasional love triangles. In the fifth season, Blair is revealed to be pregnant with Prince of Monaco, Louis Grimaldi's child. However the child later dies before birth after a car crash Blair and Chuck were in.
Document 4: List of Gossip Girl characters: The following is a list of characters for The CW teen television drama series, Gossip Girl. The show is based on the popular book series of the same name, written by author Cecily von Ziegesar. The series features nine regular characters and follows the storylines of several high school students, who attend the fictional preparatory school, ``Constance Saint Jude '': Blair Waldorf (Leighton Meester), the`` Queen Bee'' at Constance, who is notorious for her ``minions ''and scheming; her best friend and The 'It - Girl' of the Upper East Side, Serena van der Woodsen (Blake Lively); Serena's new love interest, and so - called`` lonely boy'' Dan Humphrey (Penn Badgley); Blair's boyfriend, the 'golden boy,' better known as Nate Archibald (Chace Crawford); Dan's little sister, a 14 - year - old freshman at Constance, Jenny Humphrey (Taylor Momsen); Nate's best friend, the wealthy playboy Chuck Bass (Ed Westwick); Dan's best friend and ex-lover, the creative Vanessa Abrams (Jessica Szohr); Serena's mother, a socialite and philanthropist and frequent divorcée, Lily van der Woodsen (Kelly Rutherford), and also Dan Humphrey's father, former rock star turned art gallery owner, Rufus Humphrey (Matthew Settle). The story unfolds in the Upper East Side of Manhattan as well as Brooklyn, in New York. Momsen and Szohr left the series in season five, while Kaylee DeFer was added to the main cast, portraying Ivy Dickens, a con artist who pretends to be Serena's maternal cousin, Charlie Rhodes. The series is narrated by a seemingly omniscient character, ``Gossip Girl ''(voiced by Kristen Bell).
Document 5: Yes, Then Zero: "Yes, Then Zero" is the 88th episode of the CW television series, "Gossip Girl", as well as the first episode of the show's fifth season. The episode was written by executive producer Joshua Safran and directed by Mark Piznarski. It aired on Monday,September 26, 2011 on the CW.
Document 6: Double Identity (Gossip Girl): "Double Identity" is the 67th episode of the CW television series, "Gossip Girl", as well as the second episode of the show's fourth season. The episode was written by Joshua Safran and Stephanie Savage and directed by Mark Piznarski. It originally aired on Monday, September 20, 2010 on the CW.
Document 7: The Wild Brunch: "The Wild Brunch" is the second episode of the CW television series "Gossip Girl". Josh Schwartz and Stephanie Savage wrote the episode; it was directed by Mark Piznarski. It premiered on CTV, September 25, 2007, a day before The CW's premiere.
Document 8: Blair Waldorf: Blair Cornelia Waldorf is the lead character of "Gossip Girl", introduced in the original series of novels and also appearing in the television and comic adaptations. Described as "a girl of extremes" by creator Cecily von Ziegesar, she is a New York City socialite and a comical overachiever who possesses both snobbish and sensitive sides. Due to her position as queen bee of Manhattan's social scene, Blair's actions and relations are under constant scrutiny from the mysterious Gossip Girl, a popular blogger.
Document 9: The Debarted (Gossip Girl): "The Debarted" is the 55th episode of the CW television series, "Gossip Girl". It was also the twelfth episode of the show's third season. The episode was written by executive producer and one of the series' creator Stephanie Savage and directed by Jason Ensler. It originally aired on Monday, December 7, 2009 on the CW.
Document 10: Valley Girls: "Valley Girls" is the twenty-fourth episode of the second season of The CW television series "Gossip Girl". The episode served as a backdoor pilot for a potential "Gossip Girl" spin-off series set in the 1980s, entitled "Valley Girls". The episode was directed by Mark Piznarski and written by Josh Schwartz and Stephanie Savage (this was the first episode of the series since "Much 'I Do' About Nothing" to be co-written by Schwartz). It was filmed on location in New York City, New York and in Los Angeles, California. References to elements of 1980s popular culture were heavily accentuated in the episode, which the producers hoped would bridge the generation gap between the characters and audience. "Valley Girls" aired on the CW in the United States on May 11, 2009 and was viewed live by an audience of 2.31 million Americans. Although the episode received generally positive reviews, the spin-off series was not picked up.
Document 11: New York, I Love You XOXO: With the death of Bart Bass, Nate Archibald (Chace Crawford) who is running the newspaper The Spectator, is no longer indebted to him (Bart paid his debts to control him) and he decides to find out for good who Gossip Girl is. Jack and Georgina Sparks (Michelle Trachtenberg) deal with the arrangements of Chuck and Blair's wedding. Before the ceremony, Serena and Blair have a conversation over why she is still talking to Dan after he published a negative chapter about her a few weeks ago. Overhearing their conversation, Dan leaves and gives to Nate his final chapter, which is about Gossip Girl. Blair and Chuck are married by Cyrus (Wallace Shawn) and right after, the police arrive to question them. At the same time, everyone's phones ring: Dan's chapter has been published in The Spectator, in which he reveals that he is Gossip Girl. Various characters react over the Gossip Girl reveal, including Vanessa (Jessica Szohr), Juliet (Katie Cassidy), Agnes (Willa Holland) and Lola (Ella Rae Peck), as well as Mayor Michael Bloomberg. Rachel Bilson, preparing to audition for a role in the adaptation of Dan's book, is told of Gossip Girl's identity by Kristen Bell, who shares a conspiratorial wink with the audience. Dan finally explains why he created Gossip Girl and says Jenny (Taylor Momsen) knew it all along.
Document 12: Gossip Girl (season 5): While working as a production assistant in Hollywood, Serena makes a mistake while trying to impress her new boss (guest star Michael Michele). Chuck and Nate arrive in Los Angeles to visit Serena where Nate gets involved with a shady older woman (guest star Elizabeth Hurley) and Chuck has a meeting of minds with actress / stuntwoman Zoë Bell (playing herself) as he struggles to get over Blair. Meanwhile, Blair and Louis return to New York from Monaco after spending the summer planning their wedding. Louis' problem in supporting Blair's difficult choices and nearly impossible demands threatens their relationship when she begins to see him as weak. Also, Dan gets help from Louis in a desperate attempt to prevent his book from being published in a local magazine. It is revealed in this episode that Dorota is pregnant and expecting her second child. Towards the end of the episode, it is also hinted that Blair is the one that is pregnant in which Dorota lied for her. As she is fitted for her wedding dress, the dress fitter says that by the time of her wedding she will be showing. Also, Serena runs into Charlie in Los Angeles still unaware of her real identity: Ivy Dickens, who has moved to California with her boyfriend, Max.
Document 13: The Townie: "The Townie" is the 76th episode of the CW television series, "Gossip Girl", as well as the eleventh episode of the show's fourth season. The episode was written by Amanda Lasher and Stephanie Savage and directed by Joe Lazarov. It aired on Monday, December 6, 2010 on the CW.
Document 14: Gaslit: "Gaslit" is the 75th episode of the CW television series, "Gossip Girl", as well as the tenth episode of the show's fourth season. The episode was written by Robert Hull and Joshua Safran and directed by Tate Donovan. It aired on Monday, November 29, 2010 on the CW.
Document 15: Belles de Jour: "Belles de Jour" is the 66th episode of the CW television series "Gossip Girl", as well as the season premiere of the show's fourth season. The episode was written by Joshua Safran and Stephanie Savage and directed by Mark Piznarski. It originally aired on Monday, September 13, 2010 on the CW. The episode filmed several scenes in Paris, a move that was heavily promoted by the show's network and commended by critics. A promotional video entitled "Oh Mon Dieu" used a French rendition of Nancy Sinatra's "These Boots Were Made For Walking" to advertise the season premiere.
ground_truth: Louis Grimaldi
sub_queries: Double Identity >> part of the series Answer: Gossip Girl
Gossip Girl season 5 blair pregnant who's the father Answer: Louis Grimaldi