Prior to the beginning of the trilogy, Lord Asriel had been a highly respected member of the 'Brytish' aristocracy. He had been an explorer and did work in "experimental theology", through which he acquired much power, land, and money. After having an affair with another politician's wife, Marisa Coulter, that resulted in the birth of Lyra, his life changed. Mrs Coulter's husband, Edward Coulter, attacked Lyra and her foster mother intending to harm and possibly murder Lyra. Lord Asriel intervened and killed Coulter. When the church found out, Asriel was tried and lost all property. Six-month-old Lyra was sent to a convent. Lord Asriel, who hated the church, arrived one day and took Lyra to his alma mater, Jordan College, where she was placed in the care of the Master and brought up believing Asriel to be her uncle, rather than her father.