  We give a full classification of Lie algebras of specific type in
complexified Clifford algebras. These sixteen Lie algebras are direct sums of
subspaces of quaternion types. We obtain isomorphisms between these Lie
algebras and classical matrix Lie algebras in the cases of arbitrary dimension
and signature. We present sixteen Lie groups: one Lie group for each Lie
algebra associated with this Lie group. We study connection between these
groups and spin groups.
