Yes. Read the article at the link. It was printed in The Globe and Mail, a Canadian newspaper.
RE: Do you have a source for that claim? — “Yes. Read the article at the link. It was printed in The Globe and Mail, a Canadian newspaper.”
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Justin Trudeau was born on December 25, 1971. The article doesn’t say anything about Justin’s mother Margaret Trudeau going to Cuba in 1971, or meeting with Castro somewhere other than Cuba in 1971.
The Globe and Mail article says:
“In January, 1976...Pierre Trudeau embarked on a state visit to Cuba. Practically from the moment he stepped off his Armed Forces Boeing 707, Mr. Trudeau, his wife Margaret and his newborn son Michel endeared themselves to Fidel Castro and vice-versa.”