to shame the name (of); to blot the reputation (of)
to ruin one's reputation in later life; to tarnish one's twilight years
to have the honour of being present (at a meeting, etc.); to have the honour of being a member (of a society, etc.); (lit.) to soil the lowest seat by one's presence
to have the honour of being present (at a meeting, etc.); to have the honour of being a member (of a society, etc.); (lit.) to soil the lowest seat by one's presence
to defile one's reputation; to besmirch one's name
to disgrace one's ancestors; to tarnish the honour of one's ancestors