well

(interjection) Used to acknowledge a statement or situation.

It's

(contraction): It is.

convenient

(adjective): Of or pertaining to convenience.

that

(conjunction): Introducing a subordinate clause expressing a reason or cause.

the

(article) Definite grammatical article that implies necessarily that an entity it articulates is presupposed; something already mentioned, or completely specified later in that same sentence, or assumed already completely specified.

dutch

(adjective) Of or pertaining to the Netherlands, the Dutch people or the Dutch language.

royal

(adjective): Of or relating to a monarch or their family.

family

(noun) A group of people who are closely related to one another (by blood, marriage or adoption); kin; for example, a set of parents and their children; an immediate family.

is

(verb) Third-person singular simple present indicative form of be.

descendant

(noun) One who is the progeny of a specified person, at any distance of time or through any number of generations.

of

preposition Used to indicate a relationship between two objects mentioned.

Willem

(proper noun) A male given name, equivalent to English William.

Orange

(proper noun) A city in Provence, France.