iv) Francisca de Errázuriz Madariaga born in 1748, she died very young. v) María de Errázuriz Madariaga born in 1749, she died very young vi) María Dolores de Errázuriz Madariaga born in 1750, she died very young.
The reference highlights the commonality among three individuals, Francisca de Errázuriz Madariaga, María de Errázuriz Madariaga, and María Dolores de Errázuriz Madariaga, who all experienced a premature demise.