Agnes of Hainault

Agnes of was born in 1141 in Mons, Hainault, Belgium.  Agnes of's father was Baudouin IV "Le Batisseur" Count of Hainault and her mother was Alix de Namur. She had a brother and two sisters, named Baudouin VIII Count (V of Hainault) of, Laura (Laurentia) de and Yolande of.  She was the oldest of the four children.  She died at the age of 33 in 1174.

‌Agnes of and Raoul I Sire de Marle & de were married in a religious ceremony before 1164.  They had a daughter named Yolande de.