What is a question about this article? If the question is unanswerable, say "unanswerable".

It was granted its Royal Charter in 1837 under King William IV. Supplemental Charters of 1887, 1909 and 1925 were replaced by a single Charter in 1971, and there have been minor amendments since then.

When did the Royal Institute lose its charter?
unanswerable
Vad är en fråga om den här artikeln? Om frågan är obesvarad, säg "osvarbar". Den förlänades 1837 sin kungliga stadga under kung Vilhelm IV. Tilläggsstadgar från 1887, 1909 och 1925 ersattes av en enda stadga 1971, och det har gjorts mindre ändringar sedan dess. När förlorade Royal Institute sin stadga?
What is a question of this article? If the question is unanswered, say "unanswerable." It was granted its royal charter under King William IV in 1837. Supplementary statutes of 1887, 1909 and 1925 were replaced by a single charter in 1971, and there have been minor changes since. When did the Royal Institute lose its charter?
Osvarsbart
Unanswerable