Tuhia he haere tonu mo tenei whitianga - Ko Pyotr Grigoryevich Demidov (Russian; 5 Whiringa-a-rangi 1807 <unk> 14 Paenga-whawha 1862) he rangatira me te rangatira o Ruhia. Ko te mea tino nui i uru ia ki te pakanga o Hungary o 1849
He aha?