Saint Isabelle of France place of burial Abbey of Longchamp
Longchamp Abbey
As Isabelle wished to found a community of Sorores minores (Sisters minor), her brother King Louis began in 1255 to acquire the necessary land in the Forest of Rouvray, not far from the Seine, west of Paris. On 10 June 1256, the first stone of the monastic church was laid.  Pope Alexander IV gave his sanction on 2 February 1259 to the new Rule, which was composed especially for this monastery by Isabelle along with a team of Franciscan university masters including Bonaventure. The community was allowed to hold property. The monastery was named the Convent of the Humility of the Blessed Virgin. In the Rule the nuns were called the Sisters of the Humble Order of Servants of the Most Blessed Virgin Mary. The nuns were subject to the Friars Minor. Some of the first nuns came from the Poor Clare monastery in Reims. A revised version of the Rule was approved by Pope Urban IV on 27 July 1263, which granted preferred the name of Sorores minores inclusae, or Enclosed Sisters minor, for the nuns of Longchamp.
After the death of her mother, Isabelle retired to Longchamps, although she never actually joined the joined the religious community there. She suffered from illnesses during her life, which prevented her from following the rule of life for the nuns. As patroness, she lived there in a room separate from the nuns' cells. she refused to become abbess, which allowed her to retain her wealth and resources, so she could support her abbey and continue to give to the poor. She kept a discipline of silence for most of her day. Her brother, the King, visited often.Death
Isabelle died at Longchamp on 23 February 1270, and was buried in the abbey church. After nine days her body was exhumed; according to the religious legend, it showed no signs of decay, and many miracles were said to have been wrought at her grave. In 1521 Pope Leo X allowed the abbey to celebrate her feast day with a special Office. On 4 June 1637, a second exhumation took place. On 25 January 1688, the nuns obtained permission to celebrate her feast with an octave, and in 1696 the celebration of the feast on 31 August was permitted to the whole Franciscan Order by Pope Innocent XII.
Longchamp Abbey was suppressed in the French Revolution. In 1794 the empty building was offered for sale, but, as no one wished to purchase it, it was destroyed. In 1857 the remaining walls were pulled down, except for one tower, and the land was incorporated into the Bois de Boulogne.
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