Sebastián married Joanna Castillo on 24 Sep 1579 in Nuestra Senora De La Asuncion, Fustinana, Navarra, Spain. Joanna was born in 1558 in La Roda, Albacete, Castilla-La Mancha, Spain; was christened on 30 Jul 1558 in La Roda, Albacete, Castilla-La Mancha, Spain; died in 1586 in Kortrijk, West Flanders, Belgium. [Group Sheet] [Family Chart]

1. Sebastian Cortes Castillo was born on 22 Jun 1586 in Kortryk, West Flanders, Belgium; was christened on 22 Jun 1586 in Neustra Senora De La Asuncion, Fustiana, Navarre, Spain; died in 1650 in Leerdam, Leerdam, Zuid-Holland, Netherlands.
2. Diego Cortes Castillo was christened on 31 Jul 1578 in Fustiñana, Navarra, Navarra, Spain.
3. Joana De Cortez y Castillo was christened on 9 Jan 1583 in Neustra Senora De La Asuncion, Fustiana, Navarre, Spain.