The Complex Relative Pronouns: lequel, laquelle, lesquels, lesquelles, duquel, de laquelle, desquels, desquelles, auquel, à laquelle, auxquels, and auxquelles

The complex relative pronouns are called complex because they are composed of two or more words.

“ lequel” is composed of “le” and “quel”
“de laquelle” is composed of “de”, “la” and “laquelle”

1. Lequel, laquelle, lesquels, and lesquelles

These pronouns agree in gender and in number with the antecedent.

	singular	plural
masculine	lequel	lesquels
feminine	laquelle	lesquelles

1.1 Lequel, laquelle, lesquels, and lesquelles as an object of a preposition

When used as an object of a preposition, they refer to an antecedent that is not a person. These relative pronouns agree in gender and in number with the antecedent. They are generally preceded by prepositions such as: sur, parmi, sans, sous, avec, selon, pour, par etc...