Dr. [1] Henry Olisleger was Vice Chancellor of the Duchy of Cleves.
He negotiated the marriage of Lady Anne of Cleves, the Duke's sister, to King Henry VIII of England. [2] Olisleger became the Cleves ambassador to England. [1] When there were rumours about Catherine Howard committing adultery, Olisleger tried to persuade the King, Thomas Cranmer, to remarry Anne. [3]
His first marriage was to Margaretha Rinck, daughter of Adolf Rinck, mayor of Cologne.
He married secondly Gottfrieda von Bemmel, a daughter of Elisabeth of Cleves, illegitimate daughter of John III, Duke of Cleves.
Thirdly, he married Anna Suderman, sister of lawyer Heinrich Sudermann.