delivered the opinion oe the court.
The appellant filed a caveat with the Register of the Land. Office against the issuance‘of a patent to the'appellee for twenty-two acres of land.
The latter denied that the land he had entered and caused to be surveyed belonged to the appellant, or was in the boundary claimed by him.
It appears that the Commonwealth patented 350 acres of. land to the justices of the Livingston county court, for seminary purposes, in the year 1814, and that subsequently this 350 acres,' after several conveyances, was divided between the heirs of twb joint owners, and' that the appellant ultimately became the owner of 220 acres of the boundary,, and rented 40 acres thereof to the appellee, by written lease,for the period of twenty-five years.
After the appellee was put in possession under the lease,, he learned that about 22 acres, as he supposed, but in fact,, according to survey, there was only 17^ acres, were outside of the boundaries of appellant’s 220 acres, and he at' once entered and had it surveyed as vacant land. This 17^’ acres was not vacant land, because it is included by, and' lies almost in the center of, the patent to the justices of Livingston county court for the seminary of the county, and belongs to the appellant or the owner of the remaining 130-acres of the last named patent boundary, now occupied by the heirs of J. Onne, deceased. As this land has been patented and paid for, the Commonwealth cannot and oüght. not to permit or cause it to be again patented, thus clouding the title under its former patent, and selling what it does-not own or possess.
Whether the appellant would have .the right, if he had no-title, to file a caveat and prevent the emanation of the pat*325ent to the appellee, is not the question in this case. While .it is clearly the policy of the legislature, as shown by all ■laws made by it since the formation of the State, to give to .the actual occupant the preference or preemption to the .land occupied, by requiring notice to be given to him of a .determination to enter it, so that he may procure a patent within a certain period, this case presents, not that question, but this, whether a tenant who, having leased a tract of .'land, learns that his landlord’s patent does not cover it, may ■ enter and patent any part of it.
We understand the law to be that a tenant can, under ■no circumstances, after lease and entry'under his landlord, ■ attorn to another without his consent, or deny the title or claim under which he entered, whether the title or claim be ■good or indifferent. We are therefore of the opinion that 'the appellee had no legal right to enter, survey, or cause to ■be patented any part of the land in dispute, and under the ■possession procured from the appellant by the lease; arm himself with a patent, or acquire the preemption rights of ■ a bona fide occupant.
Wherefore, the judgment is reversed, and cause remanded, ■ with directions to grant appellant a new trial, and for further ; proper proceedings.