Grenstad was born in Stockholm, Sweden and became a naval officer in 1980 after graduating from Sjökrigsskolan in Näsbypark and a long trip with.
Grenstad was born in Stockholm, Sweden. Grenstad became a naval officer in 1980 after. Grenstad was graduating from Sjökrigsskolan in Näsbypark with. Grenstad was graduating from Sjökrigsskolan in a long trip with.