What is "illanes"

Illanes (and Yllanes) is a Spanish-origin surname, appearing in the names of:

• Julio Alberto Mercado Illanes (1920–1994), Chilean businessman and politician.
• Héctor Eugenio Noguera Illanes (b. 1937), Chilean actor
• Alejandro Mario Yllanes (b. 1913-1960), Bolivian painter
• Marcos Vales Illanes (b. 1975), Spanish footballer
• José María Merchán Illanes (b. 1976) Spanish triathlete