Baroness Masham is a crossbench member of the House of Lords and a Parliamentary Co-Chair of the APHG.

She was created a life peer in 1970 as The Baroness Masham of Ilton and is an active member of the House of Lords. She takes a particular interest in issues surrounding disability, health and penal reform.

Baroness Masham is a key member of a number of All Party Parliamentary Groups, including the APHG and the All Party Parliamentary Group on Prison Health.