A recently discovered letter by Lady Mary Wroth to her father, Robert Sidney, appears in the newly catalogued Crawford Collection at the University of Kansas. Written in 1613, the year before the birth of her son James and the death of Sir Robert Wroth, it supplements her ten holograph letters currently in print. Only one letter she penned as a married woman precedes it: it is also the first of two she writes as a daughter negotiating her financial needs, The letter concerns documentation of her jointure, a topic which recurs in the Sidney correspondence. It is also of interest in a broader context of women and property in the seventeenth century. The transcribed letter and a facsimile of the manuscript accompany this note. (M.J.A.).