Traditionally, the sole owner of the feudal rights is called "Lord of X" or "Lady of X", where X stands for the name of the lordship. Originally this title belonged to knights. Since the late Middle Ages the title "Lord" is also used for owners of lordships. Since the fourteenth century the lordships of Sinoutskerke and Baarsdorp have always been inherited and sold together, but never have they been formally united. The current owner of the lordships therefore uses the title "Lady of Sinoutskerke and Baarsdorp".
It's important to realize that the title comes automatically with the feudal rights, for the title is a description or synonym of ownership of the feudal rights. By way of comparison: the title 'lessor' belongs to the person who rents out a residential or business space. It's therefor impossible to transfer the right to use the title without selling the rights attached to it. By way of comparison, selling the right to use the title "lessor" without transferring the right to rent out the aforementioned space is an impossibility. This also applies to selling the right to use the feudal title without the associated rights associated with it.
Use of name
At the time of the Ancien Régime (until 1795) it was customary to add the name of a lordship to the owner's surname. This is the origin of many dutch double surnames, which should be regarded as a territorial designation and not as a title. Since 1858 the name of a lordship can no longer be officially added to a surname. Surnames can only be changed in the Netherlands by Royal Decree.
Nevertheless, in practice it often happens that owners of lordships informally add the name of a lordship to their family name.