Altayó, I. Juana I, c1985: p. 10 (known in all history manuals as la Loca)

LC data base, 3-21-86 (hdg.: Juana, la Loca, Queen of Castile, 1479-1555; usage: Juana la Loca)

Encyc. Amer., 1975: index (Juana, la Loca, Q. of Castile) v. 16, p. 226 (Joan the Mad) v. 25, p. 414 (Infanta Juana)

Colliers Encyc., 1975: v. 17, p. 322 (Princess Johanna of Castile) v. 18, p. 681 (Juana)

Encyc. Brit., 1972: index (Joan, the Mad, Q. of Castile; Sp. form: Juana la Loca) v. 13, p. 7 (nominally Q. of Castile from mother Isabella's death in 1504 with husband Philip until his d. 1506 through son's regency until her death 1555)

Giovanna la Pazza, 1996.

Nef (Musical group). Music for Joan the Mad [SR] p1995: label (Joan the Mad; Jeanne la Folle; 1479-1555)

Vida cotidiana y arte en el Palacio de la Reina Juana I, en Tordesillas: p. 9 (d. 1555) p. 25 (b. 1479)

Boom, Henk. 1506, c2005: t.p. (Johanna de Waanzinnige)

Corres Ayala, P. Legado oculto, 2014: t.p. (Juana I de Castilla) p. 65 (b. Nov. 6, 1479, Toledo) p. 93 (d. Apr. 12, 1555)