Biting sanctions imposed following President Putin's invasion of Ukraine are battering the fortunes of his mega-rich cronies, from Alisher Usmanov to Roman Abramovich. According to the Bloomberg Billionaires Index, Russia's most moneyed fat cats saw their wealth plummet last year by $96.2 billion (£79.6bn), a figure approximately equivalent to the GDP of Cuba or Slovakia.

As new sanctions are announced by the UK and US, read on to see the 15 oligarchs who’ve suffered the most financial pain in the wake of Putin’s invasion, ranked by how much they lost last year according to Bloomberg. All dollar values in US dollars.