One of this author's protagonists is advised by a man who conjures the spir
One of this author's protagonists is advised by a man who conjures the spirits of Cain and Judas Iscariot to suggest were the cornerstones of the first two kingdoms founded on "knowledge" and "the cross." The protagonist of that work is identified as the foundation of "third kingdom" by Maximos, and is elevated to the titular role after the deaths of Gallos and Konstanzios.  Another of this author's protagonists forms the titular organization after lambasting an industrialist on Constitution Day, but leaves shop after unsuccessfully courting the Chamberlain's daughters and being turned down by the widow Rundholmen.  One of this author's title characters dies alongside his longtime love, Ella (*) Rentheim, having earlier married her twin sister Gunhild to obtain a position at a bank in which he was convicted of fraud.  In addition to writing about the emperor Julian in Emperor and Galilean, he wrote the plays The League of Youth and John Gabriel Borkman as well as one in which a photographer named Hjalmar Ekdal may or may not be the father of Hedvig, who commits suicide rather than kill the titular fowl.  For 10 points, name this playwright of The Wild Duck.
One of this author's protagonists is advised by a man who conjures the spirits of Cain and Judas Iscariot to suggest were the cornerstones of the first two kingdoms founded on "knowledge" and "the cross.
Henrik {Ibsen}