There are several different people who claim the fame of Collineau de Montaguerre. However, this is all false. Collineau de Montaguerre is indeed a surname, not a person. These specific individuals descend from the de Montaguerre family through the desceased Collineau family (Montaguerre is also spelled DeMontaguerre, de Montaguerre, Monteguerre, Montagerro, Montague).
A specific individual I highlighted two years ago was Collineau de Montaguerre, however, upon further inspection, her descendants bear the surname Rapin. In particular, Jean-Baptiste Antoine Rapin (1610-1694).
The de Montaguerre family is a notable Huguenot family. I descend through the family by Sieur Robert Briere II (1490-1563), who perished alongside his wife, Jehanne Collineau de Montaguerre (or Jeanne Guerry, 1500-1563) in May of 1563 during the Sack of Rouen.
Their daughter, Guillemine (1536-1581), married Jehan de Pinot des Fontaines (1534-1604), who changed his surname to du Pont upon this marriage. They had a daughter named Collinette du Pont (1580-1649), she married an Inconnu Rapin (1585-1635), the parents of Antoine Rapin. Antoine married Marie Barbe Boufandreau.
I genuinely hope this helps you on your genealogical trek, I've been trying to understand this specific part of my tree for the past few years and I think my own searching will decrease the amount those before me have or will attempt.
If you have any further questions, contact me at my aforementioned e-mail. Thanks!
(P.S. If you are whole-heartedly convinced that Collineau is the name, change the surname to Colinet or the first name to Colette, common errors are likely to happen and alter our records, be sure you're putting as much accurate information in to get the best results.)