Articles with unsourced statements from May 2021

Princess Christina of the Netherlands (Maria Christina; 18 February 1947 – 16 August 2019) was the youngest of four daughters of Queen Juliana of the Netherlands and Prince Bernhard of Lippe-Biesterfeld. She taught singing in New York and was a long-term supporter of the Youth Music Foundation in the Netherlands. Born visually impaired, she worked to share her knowledge of dance and sound therapy with the blind.
She renounced her and her descendants' rights to the throne before marrying Cuban exile Jorge Guillermo in 1975, and converted to Catholicism in 1992. The couple had three children and built up an extensive art collection, before they divorced in 1996. Christina died of bone cancer in 2019.

Carlos Castañeda (December 25, 1925 – April 27, 1998) was an American writer. Starting in 1968, Castaneda published a series of books that describe a training in shamanism that he received under the tutelage of a Yaqui "Man of Knowledge" named don Juan Matus. While Castaneda's work was accepted as factual by many when the books were first published, the training he described is now generally considered to be fictional.The first three books—The Teachings of Don Juan: A Yaqui Way of Knowledge, A Separate Reality, and Journey to Ixtlan—were written while he was an anthropology student at the University of California, Los Angeles (UCLA). Castaneda was awarded his bachelor's and doctoral degrees from the University of California, Los Angeles based on the work he described in these books.At the time of his death in 1998, Castaneda's books had sold more than eight million copies and had been published in 17 languages.

Edmond Louis Antoine Huot de Goncourt (pronounced [ɛdmɔ̃ də ɡɔ̃kuʁ]; 26 May 1822 – 16 July 1896) was a French writer, literary critic, art critic, book publisher and the founder of the Académie Goncourt.