sentences:  He married on the 5 May 1964 to Karol Ann Prior-Palmer (19 December 1938 – 3 July 2014), daughter of Maj.-Gen. George Erroll Prior-Palmer and Katherine Edith Bibby.On his brother's death, he succeeded to the barony on the 22 March 2001.He has successfully proven his succession to the Baronetcy of Calderwood and is therefore on the Official Roll of the Baronetage (for more information, follow this external link).