WATCH: Bloc head says oath to British Crown was 'not sincere'

Things got heated during Question Period on Tuesday after Bloc Quebecois leader Yves-François Blanchet revealed that his oath to the British Crown was "not sincere."

Blanchet's comments were celebrated by members of his party, but drew ire from other MPs, several of whom suggested he resign.

"Mr. Speaker, I'm gonna make it clear," Blanchet began, in French, "my oath to the British Crown was not sincere. It was under compulsion; it was a forced oath."

The House of Commons erupted in jeers and boos. "If you don't wanna be here, resign!" one MP shouted.

Once the Speaker of the House was able to restore order, Blanchet reiterated his sentiments.

"It was a compelled oath," he said. "My heart wasn't in it; it meant nothing."

He went on to state that his "only allegiance" was "to the people of Quebec and the Quebec nation."

"You can tell the prime minister, and you can tell it to the king," he concluded.

Minister of Canadian Heritage Pablo Rodriguez shot back at Blanchet, wondering, "if his oath was insincere, how many other times he's been insincere." He continued lambasting the Bloc head, as Trudeau and the other Liberal MPs grinned.

Blanchet's statements came after environment minister Steven Guilbeault explained that opposition to the federal carbon tax in Quebec was irrelevant because it does not apply there.

This is not the first time Blanchet has been outspoken about his relationship with the British Crown.

Following the death of Queen Elizabeth II, he paid his respects, but also suggested that the monarchy itself should be abolished.

“We cannot ignore a history of conquest and aggression against the people of New France who became the Quebec nation,” he wrote.

“Today, the English monarchy is neither friend nor foe: useless, dilapidated, expensive, and hostile to our values. Respect, yes, but it must end.”