John I, Count of Loon

(1225-1279) (1225–1278)

Parents

• Arnold IV, Count of Loon
• Jeanne, Countess of Chiny

Children

• Jean II de Looz
• Arnold V, Count of Loon

Siblings

• Louis V, Count of Chiny
• Juliane de Looz
• Aleida van Loon-Chiny

Partners

• Mathilde von Jülich