The event has already seen a government minister resign and a senior EU figure come under pressure to quit.
Mr Martin, along with Deputy Prime Minister Leo Varadkar, has asked EU trade commissioner Phil Hogan to consider his position in light of his presence at the dinner.
Mr Hogan has apologised for attending the event - and it is down to Ms von der Leyen to force him to leave the role."I acknowledge my actions have touched a nerve for the people of Ireland, something for which I am profoundly sorry," he said in a statement.Mr Hogan added:"All of us must display solidarity as we try to stamp out this common plague.
"I thus offer this fulsome and profound apology, at this difficult time for all people, as the world as a whole combats COVID-19. "I spoke to both the Taoiseach and the Tanaiste yesterday and I have listened carefully to their views, which I respect. "I have been reporting to the president of the European Commission on all these matters in recent days."
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