Meghan Markle Ripped by Nelson Mandela's Grandson

Meghan Markle drawing a parallel between her marriage to Prince Harry and Nelson Mandela's prison release is pissing off a lot of people ... especially Mandela's grandson.

To be fair, The Duchess of Sussex says it was someone else who made the comparison, but going public with it is blowing up in her face.

She recently told The Cut -- she's the cover story -- about an exchange she had at the 2019 London premiere of the live-action "Lion King" film ... claiming a South African cast member told her, "When you married into this family, we rejoiced in the streets the same we did when Mandela was freed from prison."

Mandla Mandela, the grandson of Nelson, doubts that conversation ever happened, though ... telling Daily Mail his grandfather's celebration was "based on overcoming 350 years of colonialism with 60 years of a brutal apartheid regime in South Africa. So, It cannot be equated to as the same."

As you know, under Apartheid rule, Mandela served 27 years in prison for sabotage and treason before his release ... and Mandla doesn't think South Africa's joy for that event can be fairly compared to Meghan marrying into royalty.

Meghan spilled a lot during her recent interview ... including her eventual return to Instagram after having to give up her personal account due to royal control.

She says, "Why would I give the very people that are calling my children the N-word a photo of my child before I can share it with the people that love my child?”

She doesn't point fingers at any specific person or moment, though.