F . R . A . S ). ▁He ▁was ▁appointed ▁Knight ▁Commander ▁of ▁the ▁Order ▁of ▁the ▁British ▁Empire ▁( K . B . E .) ▁in ▁the ▁ 1 9 7 4 ▁New ▁Year ▁Hon ours . ▁Lord ▁Ros se ▁was ▁active ▁in ▁the ▁National ▁Trust . ▁ ▁Mar riage ▁and ▁children ▁ ▁Ros se ▁married ▁Anne ▁Mess el , ▁daughter ▁of ▁L t .- Col . ▁Leonard ▁Charles ▁Rud olph ▁Mess el ▁and ▁Ma ud ▁Frances ▁S amb our ne , ▁on ▁ 1 9 ▁September ▁ 1 9 3 5 . ▁ ▁They ▁had ▁two ▁children : ▁▁ ▁Br end an ▁Par s ons , ▁ 7 th ▁Earl ▁of ▁Ros se ▁( born ▁ 2 1 ▁October ▁ 1 9 3 6 ), ▁married ▁Al ison ▁Margaret ▁Co oke - H ur le , ▁daughter ▁of ▁Major ▁John ▁Dave y ▁Co oke - H ur le ▁and ▁had ▁issue . ▁ ▁Hon . ▁Des mond ▁Oliver ▁Martin ▁Par s ons ▁( 2 3 ▁December ▁ 1 9 3 8 ▁– ▁ 1 6 ▁July ▁ 2 0 1 0 ), ▁married ▁Al ine ▁Ed w ina ▁Mac don ald , ▁daughter ▁of ▁George ▁Alexander ▁Mac don ald ▁and ▁had ▁issue . ▁ ▁Anne ▁Mess el , ▁by ▁her ▁first ▁marriage ▁to ▁Ron ald ▁Arm strong - J ones , ▁was ▁the ▁mother ▁of ▁Anton y ▁Arm strong - J ones , ▁ 1 st ▁Earl ▁of ▁Snow don , ▁who ▁in ▁ 1 9 6 0 ▁married ▁The