(a) Degrees of relationship shall be reckoned according to the method of the civil law by beginning with either of the persons in question, ascending to the common ancestor, and then descending to the other person.
(b) One degree shall be counted for each step both ascending and descending.
Structure Maryland Statutes
Title 1 - Estates of Decedents -- General Provisions
Subtitle 2 - Determining Relationship
Section 1-201.1 - Application of Rules of Construction
Section 1-202 - Surviving Spouse
Section 1-203 - Degree of Relationship -- Civil Law
Section 1-204 - Degree of Relationship -- Relative of Half Blood
Section 1-206 - Legitimate Child
Section 1-208 - Illegitimate Child
Section 1-208.1 - Effect of Presumed Parentage; Rebutting Presumption