He was involved with Sofia and later married her. Together they had a daughter in 1703. She was kept an secret because of the active werewolf-witch war. After Quentin's death, his daughter was introduced to society no longer being an secret to everyone else.
Not much is known about Quentin's physical appearance.
There hasn't been a whole lot said about Quentin's personality.
- The Originals: The Rise (Mentioned)