http://fmg.ac/Projects/MedLands/ARAGON%20&%20CATALONIA.htm#PedroIIIdied1285B
Mistress (1): MARÍA Nicolau, daughter of ---. The primary source which confirms her parentage and relationship with King Pedro has not yet been identified.
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King Pedro III had three illegitimate children by Mistress (1):
7. JAIME de Aragón (-after 22 May 1285). Zurita records that “el Rey” granted “la ciudad de Segorbe” to “Don Jayme Perez su hijo natural” and married him to “Doña Sancha Fernandez hija de Don Hernando Diaz” in Nov 1279[465]. Señor de Segorbe. m (Nov 1279) SANCHA Fernández, daughter of FERNANDO Díaz & his wife ---. Zurita records that “el Rey” granted “la ciudad de Segorbe” to “Don Jayme Perez su hijo natural” and married him to “Doña Sancha Fernandez hija de Don Hernando Diaz” in Nov 1279[466]. Jaime & his wife had one child:
a) CONSTANZA de Aragón. Zurita records the marriage in Mar 1299 of “Artal de Luna hijo de Don Lope” and “D. Jayme Perez señor de Segorbe y Doña Sancha Fernandez Diaz su muger...Doña Costança hija”[467]. Señora de Segorbe. m (Mar 1299) as his first wife, ARTAL [II] de Luna Señor de Luna, son of LOPE Ferranch de Luna & his wife --- (-Sardinia 1323).
8. JUAN de Aragón. The primary source which confirms his parentage has not yet been identified.
9. BEATRIZ de Aragón. The primary source which confirms her parentage and marriage has not yet been identified. m RAMÓN de Cardona Señor de Torá, son of --- (-after 1340).
