Martin was born of John de Porres, a Spanish nobleman and Knight of the Order of Alcantara, and a black free woman, Anna Velazquez. Martin’s father was not very happy to find his child was black. He did not want to be connected with the child in any way. As a matter of fact, on the baptismal record there was no mention of the father at all. The Baptismal certificates read only "Martin, son of an unknown father." But some years later, he officially acknowledged Martin as being his son. We’re not sure if John ever married Anna Velazquez. If he did, he didn’t treat her very well. He spent most of his time in other countries, leaving Anna and the children, Martin and his sister Joan to fend for themselves. Though Martin was not from a poor background, you would not have known it by the way he and his family lived. They were always at least borderline poverty, and sometimes full-blown poverty.