[andrewb]

Originally Posted by garinda

She was the main heiress to the majority share holder and founder. Your Googling needs some improvement.

How much is she worth?
In January 2002, when her assets were seized, Dame Shirley told the courts that she only had £300,000 to her name. But previously, at least, she owned significantly more as one of the heiresses to her father Jack Cohen's Tesco empire. According to the Sunday Times' rich list her wealth in 2001 was estimated to be £69m. Others put her combined wealth at more than £300m.
Q&A: Dame Shirley Porter | Society | Society Guardian

Perhaps next time to avoid confusion you could write 'was once owned by a Conservative'. Subtle, but important.