How does this reconstruction compare to the original (see second section, below)? Elizabeth of Namur = Gervais, Count of Rethel; their daughter: Milicent of Rethel = (1) Robert Marmion; their son: [possible additional Marmion generation] Geoffrey Marmion = _______; Albreda or Aubrey de Marmion = William de Camville; their son: William de Camville = Iseuda; their son: Thomas = Agnes; their daughter: Felicia de Camville = Phillip Durvassal; their son: Thomas Durvassal= Margery; their daughter: Margery Durvassal = William de la Spine; their son: William de la Spine = Alice de Bruley; Elizabeth of Namur = Gervais, Count of Rethel; their daughter: Milicent of Rethel = (2) Richard de Camville; their son: William de Camville = Aubree de Marmion; their son: William de Camville = Iseuda; their son: Thomas = Agnes; their daughter: Felicia de Camville = Phillip Durvassal; their son: Thomas Durvassal= Margery; their daughter: Margery Durvassal = William de la Spine; their son: William de la Spine = Alice de Bruley; I assume this is also incorrect, but thought I would throw it out there, with these links as "sources" (loosely so called): https://books.google.com/books?id=KYYuAAAAMAAJ&pg=PA332&dq=%22richard+de+camvile%22&hl=en&sa=X&ved=0ahUKEwjetNLW1cjNAhWCOSYKHaXTAIE4FBDoAQg2MAQ#v=onepage&q=%22richard%20de%20camvile%22&f=false https://books.google.com/books?id=e4YxAQAAIAAJ&pg=PA330&dq=%22robert+de+marmyon+and+miliscent+his+wife%22&hl=en&sa=X&ved=0ahUKEwiB-Ji02MjNAhVBLyYKHTu9D74Q6AEIIDAA#v=onepage&q=%22robert%20de%20marmyon%20and%20miliscent%20his%20wife%22&f=false https://books.google.com/books?id=NxL0AMbrWqwC&pg=PA51&dq=milicent+marmion&hl=en&sa=X&ved=0ahUKEwiMy6uZ1sjNAhWBeSYKHSgJDqUQ6AEISzAH#v=onepage&q=milicent%20marmion&f=false https://books.google.com/books?id=RuE_AQAAMAAJ&pg=PA191&dq=milicent+marmion&hl=en&sa=X&ved=0ahUKEwjP-oqw18jNAhVHxCYKHaoOAbkQ6AEIHjAA#v=onepage&q=milicent%20marmion&f=false