Maryland Insurance Section 7-101
§ 7-101.
  (a)   In this title the following words have the meanings indicated.
  (b)   "Affiliate" means a person that directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with another person.
  (c)   "Control", "controlling", "controlled by", or "under common control with" means the direct or indirect possession of the power to direct or cause the direction of the management and policies of a person, through ownership of voting securities or of securities convertible into voting securities, by contract other than a commercial contract for goods or nonmanagement services, or otherwise, whether or not the power is exercised or sought to be exercised.
  (d)   "Insurance holding company" means a person that directly or indirectly controls an insurer or controls a person that controls an insurer.
  (e)   "Insurance holding company system" means two or more affiliates, at least one of which is an insurer.
  (f)   "Subsidiary" means an affiliate of a person that, directly or indirectly, through one or more intermediaries, is controlled by that person.