Her granddaughter thought her "formidable, but never intimidating ... a supremely honest woman, full of commonsense and modesty".
From Streep's admiration of Thatcher, to Andrea Riseborough's comments that she had "psychopathic tendencies", we take a look at what actresses thought about the formidable character they portrayed.
And also I thought Michael Keaton was formidable and I loved that film [Birdman]." We are in the dining room at Claridge's in Mayfair, and Redmayne has just ordered spaghetti bolognese without looking at the menu.
He liked Wyngarde's King ("a dignified clown") but thought Howes not formidable enough to stand up to him as Anna.
His winner, Spain, throttled what many thought was the most formidable favorite of the day, the 2-5 Ribolettandand last year's championship mare, Beautiful Pleasure.
But diplomatic relations are thawing as quickly as Arctic ice – and the upshot could be significant for the frigid northern wastes of the planet, which are thought to sit on formidable quantities of mineral reserves.
The species was originally thought to be a formidable carnivore but recent research suggests that Gastornis was probably a vegan, using its huge beak to munch through leaves, nuts, seeds and fruit.
Carolyn Everson, Facebook's vice president of global marketing, thinks mothers make formidable executives.
I think he's formidable, an absolute legend and I'd love him to come for dinner at my house.
You look at Blair and his favourites, and you think, none was formidable, in the old, EM Forster sense of having a character that imposes itself with persuasive grace.
I think a very formidable success story is the Hawaiian language.
