Law of Succession to the Headship of the State
It had a short elaboration process and was approved by the Cortes in its session of 7 June 1947 and submitted to a referendum on 6 July 1947 , coming into force on 27 July 1947 . 
<triplet> referendum on 6 July 1947 <subj> 6 July 1947 <obj> point in time