▁Ald erd ice , ▁Baron ▁Ald erd ice ▁( born ▁ 2 8 ▁March ▁ 1 9 5 5 ) ▁is ▁a ▁Northern ▁Ireland ▁politician . ▁He ▁was ▁Spe aker ▁of ▁the ▁Northern ▁Ireland ▁Assembly ▁ 1 9 9 8 – 2 0 0 4 , ▁leader ▁of ▁the ▁Alliance ▁Party ▁of ▁Northern ▁Ireland ▁ 1 9 8 7 – 1 9 9 8 , ▁and ▁since ▁ 1 9 9 6 ▁has ▁sat ▁in ▁the ▁House ▁of ▁L ords ▁as ▁a ▁Liberal ▁Dem ocrat . ▁ ▁Personal ▁life ▁Ald erd ice ▁was ▁born ▁to ▁the ▁Rev . ▁David ▁Ald erd ice ▁and ▁An nie ▁Margaret ▁Hel ena ▁Sh ield s . ▁He ▁was ▁educated ▁at ▁B ally men a ▁Academy ▁and ▁the ▁Queen ' s ▁University ▁B elf ast ▁( Q UB ) ▁where ▁he ▁studied ▁medicine ▁and ▁qualified ▁in ▁ 1 9 7 8 . ▁In ▁ 1 9 7 7 ▁he ▁married ▁Joan ▁Hill , ▁with ▁whom ▁he ▁has ▁two ▁sons ▁and ▁one ▁daughter . ▁He ▁worked ▁part - time ▁as ▁a ▁consult ant ▁psych iat rist ▁in ▁psych other apy ▁in ▁the ▁N HS ▁from ▁ 1 9 8 8 ▁until ▁he ▁retired ▁from ▁psych iat ric ▁practice ▁in ▁ 2 0 1 0 . ▁He ▁also ▁lect ured ▁at ▁Queen ' s ▁University ' s ▁Fac ulty ▁of ▁Medicine ▁between ▁ 1 9 9 1 ▁and ▁ 1 9 9 9 . ▁ ▁Ald erd ice ▁claims ▁a ▁distant ▁relationship ▁to ▁John ▁King , ▁a ▁ 1 9