T'Pris

T'Pris was a female Vulcan who served on board the USS Enterprise (NCC-1701) in 2253.

While serving on the Enterprise, she met a young Mr. Spock, who had just recently been promoted to Lieutenant and posted to the Enterprise. After some time, the two began a romantic relationship, and Spock briefly considered dissolving the bond he had with his betrothed back home, T'Pring. She accompanied Spock on a mission to retrieve Vulcan's Glory.

Shortly after recovering the Vulcan's Glory, T'Pris was murdered by a human crewmember with 1/8 Vulcan blood named Lieutenant Daniel Reed, whose maternal great-grandmother had been disgraced when the Glory had originally been lost.

Source

 * TOS novel Vulcan's Glory