Joseph I of Portugal
In 1773, Amaral was commissioned by Joseph I of Portugal to make two sets of portraits featuring the King and his wife, Mariana Victoria of Spain. After the completion of his grandfather's set of portraits in mid-1773, José, Prince of Beira ordered a similar commission by Amaral. However, he also asked for a second portrait of José, for his mother, Maria I of Portugal. These works would gain Amaral incredible fame throughout Portugal and Europe as an able portrait painter, having done five incredibly detailed and large portraits in one year.