Albrecht Muth, the Georgetown man accused of killing his much older socialite wife, admitted to fabricating different personas — including being an Iraqi general and Count Albi — but suggested that it was part of his work in the “intelligence” world, a psychiatrist testified Monday.

The testimony came during a hearing to determine whether Muth, 48, is mentally competent to stand trial for killing his 91-year-old wife, Viola Drath, in August 2011. The hearing is expected to last several days.