Hubert Marchand (1750 – 1821) was the son of Franc Marchand and Emmeline Vincent as well as a member of the Louisiana Brotherhood of Assassins. He is also an ancestor of Mary Lynch and her son, Callum Lynch.
In 2016, Hubert's name could be seen on a notice board set up at an Abstergo Industries facility in Madrid, which detailed the family tree of Callum Lynch. Later, as Lynch fully synchronized with one of his ancestors, Aguilar de Nerha, Hubert was among the group of Lynch's Assassin ancestors that briefly appeared through the Animus.
- Hubert, his father Franc and his son Jean share their surname with a French slave called Henri Marchand who was sent to participate in the French Geodesic Mission by the Assassin Adéwalé in 1735. It is unknown if they are actually related to him, however.