Lwaxana Troi

Lwaxana Troi was a telepathic Betazoid from the plant Betazed. Lwaxana's titles included Daughter of the Fifth House, Holder of the Sacred chalice of Riix, Heir to the Holy Rings of Betazed and Ambassador of the Betazed government.

Lwaxana was wife of Starfleet officer Ian Andrew Troi and mother of Starfleet officer Deanna Troi.

Ian Troi
Lwaxana married Starfleet officer, Lieutenant Ian Troi, Science officer of the USS Carthage, in the year 2328. The couple had their first child, Kestra, the next year.

In 2336, a year after the couples second child, Deanna, Kestra drowned in an accident. Lwaxana blamed herself for Kestra's death and she blocked all memories involving Kestra for over 35 years.

Ian Troi was killed in the line of duty in the year 2343 on the planet Raknal V, when a building damaged by Romulan sabotage collapsed on him. Ian was with family friend, Lieutenant Elias Vaughn when he died. (TLE novel: The Art of the Impossible)