 The Prondzynski family home was for many years Knockdrin Castle and estate, near Mullingar, County Westmeath, Ireland; this was placed on the market in 2017, and is still for sale in December 2018.In 1980 Prondzynski was appointed as a Lecturer in the School of Business Studies, Trinity College, Dublin, and became a Fellow of the College in 1987.During this time he became known for his views on industrial relations and labour law matters, often taking an approach sympathetic to the trade union movement and gaining the nickname "the Red Baron."