Mike Bloomberg at Bloomberg on  Harcourt Street in Dublin. Photograph: Cyril Byrne

The three-time former mayor of New York City, serial flirter with US presidential bids and 11th richest man in the world has got his emerald tie on. (...)

 Prof Patrick Johnston, who was in his late 50s,  took over as president and vice-chancellor of Queen’s University in 2014. File photograph: Alan Betson

The death has occurred of the vice-chancellor of Queen’s University, Belfast, Professor Patrick Johnston, the college confirmed on Sunday. A leading (...)