Shobata Castle landmark was in the news recently when the statues of Nobunaga's father and mother along with the baby Uesama was erected near Shobata station. Nice gesture, but I do not think Shobata Castle was the birthplace of the Uesama. The only document that backs up Shobata is the Bishukojoushi. I am more comfortable in stating that Nobunaga was born at Nagoya Castle in 1534. Earlier this year, I have written a post on this subject:http://www.otsuke.blogspot.com/2013/01/nobunagas-birth-i.html
Owari ni hikari wo
Tenka no tame!