 Residence organs can be used as "practice" organs, for practice at home by a professional organist, or as home instruments for amateur organists.Their use can be traced as far back as the 16th century where Henry VIII of England owned more than a dozen residence organs, as did many members of his nobility.In construction, they are generally less elaborate than church organs, being constricted by the relative paucity of space for the mechanisms in a residence as opposed to a church, theatre, or other larger building.