He became the grandfather of Lord Frederick Windsor ( born in 1979 ) and Lady Gabriella Windsor ( born in 1981 ) .
On 30 June 1978 in Vienna , Reibnitz had attended the civil wedding of his daughter Marie Christine to Prince Michael of Kent .
Reibnitz became the grandfather of Lord Frederick Windsor ( born in 1979 ) and Lady Gabriella Windsor ( born in 1981 ) .
On 30 June 1978 in Vienna , Reibnitz had attended the civil wedding of his daughter Marie Christine to Prince Michael of Kent .