 Raynald came to Jerusalem with Joscelin before 1 September 1176 where he became a close ally of Joscelin 's sister , Agnes of Courtenay . She was the mother of the young Baldwin IV of Jerusalem , who suffered from leprosy . Hugo Etherianis , who lived in Constantinople after around 1165 , mentioned in the preface of his About the Procession of the Holy Spirit that he had asked " Prince Raynald " to deliver a copy of the work to Aimery of Limoges . According to historian Bernard Hamilton , these words suggest that Raynald led the embassy that Baldwin IV sent to Constantinople to confirm an alliance between Jerusalem and the Byzantine Empire against Egypt . 
