Some context: Stephen Joshua Sondheim (; born March 22, 1930) is an American composer and lyricist known for more than a half-century of contributions to musical theater. Sondheim has received an Academy Award, eight Tony Awards (more than any other composer, including a Special Tony Award for Lifetime Achievement in the Theatre), eight Grammy Awards, a Pulitzer Prize, a Laurence Olivier Award, and a 2015 Presidential Medal of Freedom. He has been described by Frank Rich of The New York Times as "now the greatest and perhaps best-known artist in the American musical theater." His best-known works as composer and lyricist include A Funny Thing Happened on the Way to the Forum, Company, Follies, A Little Night Music, Pacific Overtures, Sweeney Todd, Merrily We Roll
The Kennedy Center held a Sondheim Celebration, running from May to August 2002, consisting of six of Sondheim's musicals: Sweeney Todd, Company, Sunday in the Park With George, Merrily We Roll Along, Passion and A Little Night Music. On April 28, 2002, in connection with the Sondheim Celebration Sondheim and Frank Rich of the New York Times had a conversation. They appeared in four interviews, entitled "A Little Night Conversation with Stephen Sondheim", in California and Portland, Oregon in March 2008 and at Oberlin College in September. The Cleveland Jewish News reported on their Oberlin appearance: "Sondheim said: 'Movies are photographs; the stage is larger than life.' What musicals does Sondheim admire the most? Porgy and Bess tops a list which includes Carousel, She Loves Me, and The Wiz, which he saw six times. Sondheim took a dim view of today's musicals. What works now, he said, are musicals that are easy to take; audiences don't want to be challenged". Sondheim and Rich had additional conversations on January 18, 2009 at Avery Fisher Hall, on February 2 at the Landmark Theatre in Richmond, Virginia, on February 21 at the Kimmel Center in Philadelphia and on April 20 at the University of Akron in Akron, Ohio. The conversations were reprised at Tufts and Brown University in February 2010, at the University of Tulsa in April and at Lafayette College on March 8, 2011. Sondheim had another "conversation with" Sean Patrick Flahaven (associate editor of The Sondheim Review) at the Kravis Center in West Palm Beach on February 4, 2009, in which he discussed many of his songs and shows: "On the perennial struggles of Broadway: 'I don't see any solution for Broadway's problems except subsidized theatre, as in most civilized countries of the world.'" On February 1, 2011, Sondheim joined former Salt Lake Tribune theatre critic Nancy Melich before an audience of 1,200 at Kingsbury Hall. Melich described the evening: He was visibly taken by the university choir, who sang two songs during the evening, "Children Will Listen" and "Sunday", and then returned to reprise "Sunday". During that final moment, Sondheim and I were standing, facing the choir of students from the University of Utah's opera program, our backs to the audience, and I could see tears welling in his eyes as the voices rang out. Then, all of a sudden, he raised his arms and began conducting, urging the student singers to go full out, which they did, the crescendo building, their eyes locked with his, until the final "on an ordinary Sunday" was sung. It was thrilling, and a perfect conclusion to a remarkable evening - nothing ordinary about it. On March 13, 2008, A Salon With Stephen Sondheim (which sold out in three minutes) was hosted by the Academy for New Musical Theatre in Hollywood.
Who are the others mentioned in regards to the conversations?
A:

Some context: Bernhard was born Bernhard Leopold Friedrich Eberhard Julius Kurt Karl Gottfried Peter, Count of Biesterfeld in Jena, Saxe-Weimar-Eisenach, German Empire on 29 June 1911, the elder son of Prince Bernhard of Lippe and his wife, Armgard von Cramm. He was a grandson of Ernest, Count of Lippe-Biesterfeld, who was regent of the Principality of Lippe until 1904. He was also a nephew of the principality's last sovereign Leopold IV, Prince of Lippe.
Bernhard met then-Princess Juliana at the 1936 Winter Olympics at Garmisch-Partenkirchen. Juliana's mother, Queen Wilhelmina, had spent most of the 1930s looking for a suitable husband for Juliana. As a Protestant of royal rank (the Lippe-Biesterfelds were a sovereign house in the German Empire), Bernhard was acceptable for the devoutly religious Wilhelmina. Wilhelmina left nothing to chance, and had her lawyers draft a very detailed prenuptial agreement that specified exactly what Bernhard could and could not do. The couple's engagement was announced on 8 September 1936, and they were married at The Hague on 7 January 1937. Earlier, Bernhard had been granted Dutch citizenship, and changed the spelling of his names from German to Dutch. Previously styled as Serene Highness, he became a Royal Highness by Dutch Law. His appropriateness as consort of the future Queen would later become a matter of some public debate. Prince Bernhard was father of six children, four of them with Queen Juliana. The eldest daughter is Princess Beatrix, former Queen of the Netherlands, (1938). His other daughters with Juliana are Irene (1939), Margriet (1943) and Christina (1947). He had two illegitimate daughters. The first is Alicia von Bielefeld (born 21 June 1952), whose mother has not been identified. She is a landscape architect and lives in the United States. Prince Bernhard's sixth daughter, Alexia Grinda (a.k.a. Alexia Lejeune or Alexia Grinda-Lejeune, born in Paris on 10 July 1967), is his child by the French socialite and fashion model Helene Grinda. Although rumours about these two children had already spread, it was made official after his death. In December 2008, Dutch historian Cees Fasseur claimed that former British Conservative Cabinet Minister Jonathan Aitken was the result of a wartime affair between Prince Bernhard and Aitken's mother, previously Penelope Maffey.
Who was he married to?
A:
Princess Juliana