...time, by which the title or use of real property is affected shall be limited to the term of thirty years after the date of the deed or other instrument...the date of the probate of the will creating them, except in cases of gifts or devises for public, charitable or religious purposes. The provisions of...

...thereto. Subd. 2. Restriction of duration of condition. All covenants, conditions, or restrictions hereafter created by any other means, by which the...on account of breach made in a condition subsequent shall be barred unless such right is asserted by entry or action within six years after tne happening...