Mississippi Code Title 91. Trusts and Estates § 91-7-1

Wills shall be proved in and letters testamentary thereon granted by the chancery court of the county in which the testator had a fixed place of residence. If he had no fixed place of residence and land be devised in the will, it shall be proved in and letters granted by the chancery court of the county where the land, or some part thereof, is situated.