During the reign of Henry II, there are records of a Sir Richard Tylden who was seneschal (or steward) to Hugh de Lacy, Constable of Chester.
Henry's son, Richard I "the Lionheart", who led the Third Crusade with Philip II of France in 1190, was accompanied by a Sir Richard Tylden. His son was probably Sir Richard of Sittenbourne who married Gertrude daughter of Sir William Vernon of Fordsham, Cheshire. Their son, Sir Henry Tylden, married Phillipa de Boteler (daughter of Sir Richard Boteler of Lancashire). Their son, Sir William Tylden, married Constance daughter of Rodolphus Gannett who in turn produced Sir William Tylden who served under the Black Prince in the Battle of Poitiers in 1356.
The Tyldens possessed manors in the parishes of Brenchley, Kennington, Otterden, Milstead, Tilmanstone and Wormshill.
The line extends through numerous generations and branches out in three lines - the eldest remained possessed of its lands in Kent, one branch went to Sussex (with one of its members migrating to America) and one moved to Ifield.
Descendants of the Tylden line continued to reside in Milsted until the 19th century.1448

The Tyldens are a very ancient family in this county [Kent], and appear to have separated tion three distinct branches. The first, and the most ancient is here recorded. The second were originally of Tenterden, and went into Sussex; mention is made of this family in the visitation for that county. One of the Tenterden branch went to america, with the Pilgrims, and has founded a numerous family of the name in that country, but they spell their name with an i instead of a y.

English Origins of New England Families, Vol. I, p 152