Flag of Greece designs differ according to the historical era they were used in and in accordance with the political scene in Greece at the time. The first flag to be used by a head of state of Greece was that of King Otto of Greece. Following the establishment of the Kingdom of Greece in 1832, the 17-year old Bavarian prince Otto was selected as king for the newfound monarchy. A royal decree dated 4 (16) April 1833 prescribed a number of maritime flags, including the royal standard. This flag, set at a 7:10 ratio, was a variant of the Greek white-cross-on-blue and
Flag of Greece embassies and civil services, while the sea flag (without the crown) was allowed for use by private citizens. On 25 March 1924, with the establishment of the Second Hellenic Republic, the crowns were removed from all flags. On 20 February 1930, the national flag's proportions were established at a 2:3 ratio, with the arms of the cross being "one fifth of the flag's width". The land version of the national flag was to be used by ministries, embassies, and in general by all civil and military services, while the sea flag was to be used by naval and merchant vessels,