Del. Code tit. 25, § 747

In a partition of several tracts or parcels of land held by the same persons, though by different titles or in different shares, as provided by § 746 of this title, if 1 or more of the persons entitled as joint tenants, tenants in common or parceners has some share, proportion or interest in all the tracts or parcels of land and premises named in the petition, and any other person is entitled as joint tenant, tenant in common or parcener to a share, proportion or interest in any 1 or more of the tracts or parcels of land, though not in all of them, the Court may in like manner make a decree for partition in 1 proceeding as aforesaid.