Thomas, Lord of Coucy
Christian crusader

Thomas of Marle, Lord of Coucy, was a medieval French nobleman. He was born in 1073 to Enguerrand I of Boves, the Lord of Coucy, and his wife Adele of Marle. After the death of his father, Thomas became the Lord of Coucy and of his family's other holdings. Thomas of Marle became infamous for his aggressive and brutal tactics in war and his continued rebellion against the authority of King Louis VI.
Early life
In 1035, the first lord of Coucy, Dreux, and Boves, seized the Castle of Coucy from Alberic, its original owner, and established himself as Lord of Coucy. This move seems to have set the tone for the behavior of the following Lords of Coucy, including his grandson Thomas, who would become infamous for his ruthlessness in war.
In 1073, Thomas of Marle was born as the heir of Enguerrand I of Boves, the Lord of Coucy, and his wife Adele, the Dame of Marle. Enguerrand was known as a womanizer but his faults were overlooked by chroniclers due to his continued support of various religious institutions in the area. Although he supported the Catholic Church, Enguerrand I and the previous lords of Coucy were known to participate in a number of local wars in order to gain land and resources.
As the firstborn heir, Thomas would have been educated in the affairs of nobility which would have included the skills and virtues of a knight. As a knight, he was expected to uphold certain chivalric virtues that were used to control knightly and noble violence and disorder.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q2062088. 1 of 1 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1073 and 1035.
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