page_title: Sanada Maru
hierarchical_section_title: Sanada Maru
caption_attribution_description: 日本語: 『諸国古城之図 真田丸（摂津）』。広島市立中央図書館蔵。 English: Syokoku kojō no zu - Sanada Maru. Collection of the Hiroshima City Central Library.
context_page_description: The Sanada Maru was a small fortification attached to Osaka castle. It is famous for being impregnable and playing a key role in defending the castle in the winter of 1615. Later, it was forcefully destroyed despite being exempt from the reconciliation condition.
context_section_description: The Sanada Maru (真田丸 （さなだまる）, Sanada Maru) was a small fortification attached to Osaka castle. It is famous for being impregnable and playing a key role in defending the castle in the winter of 1615. Later, it was forcefully destroyed despite being exempt from the reconciliation condition.
caption: "Syokoku kojō no zu - Sanada Maru", map of the Sanada Maru.
  Collection of the Hiroshima City Central Library.
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