Thomas Kingston, Lady Gabriella Windsor’s husband and Pippa Middleton’s ex-boyfriend, has died, Buckingham Palace announced on Tuesday. He was 45.

Kingston died in Gloucestershire on Sunday, with emergency services called to the scene shortly after 6 p.m. His cause of death is still undetermined.

The financier and the editor, 42, tied the knot in 2019.

Gabriella is the daughter of the Prince of Kent, the late Queen Elizabeth’s first cousin.

“It is with the deepest sorrow that we announce the death of Thomas Kingston, our beloved husband, son and brother,” Buckingham Palace said in a statement.

“Tom was an exceptional man who lit up the lives of all who knew him. His death has come as a great shock to the whole family and we ask you to respect our privacy as we mourn his passing.”

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