Welcome to FN’s weekly diary column featuring all the best titbits from around the City of London...

Wiseman’s Davos duties overtaken by events
Red faces at BlackRock. Last month Mark Wiseman, a senior executive at the asset management giant who was regarded as a future contender to replace supremo Larry Fink, was ousted for failing to disclose a personal relationship with a colleague in a breach of the company’s policy. Furthermore, Wiseman is married to Marcia Moffatt, who oversees BlackRock’s Canada business.