William Cecil, 17th Baron de Ros

William Cecil, 17th Baron de Ros of Helmsley (May 1590 – 27 June 1618).

He was born at Newark Castle, Nottinghamshire, and baptised on 4 June 1590. In 1591, he inherited the barony of de Ros from his mother, Elizabeth Cecil, 16th Baroness de Ros. On 13 February 1615, he married Ann Lake.

He was sent by King James I on a special mission to the Holy Roman Emperor.

...
Wikipedia