Kadriorg (0) 
Catherine’s valley. Being both the name of a Sub-district and a valley, sensu estoniano, this is in the nominative, but often referred to or conflated with Kadrioru. Although it’s possible that Estonians perceive it as a compound word (which it is) that already includes the relevant genitive in Kadri. Named after the lady who (all rumours) began life as Martha Skavronskaya, 1683/84(?)-1727, daughter of a Lithuanian peasant, adopted by Glück, founder of ‘peasant schools’ (see Nunnadetagune torn) and Lutheran pastor who translated the Bible into Latvian, was pressed into becoming laundress to the Russian army, became mistress first to Prince Alexander Danilovich Menshikov then to Peter the Great whom she later married, becoming Catherine I, Empress and Autocrat of all the Russias (grandmother-in-law of Catherine the Great). Formerly known as Kuningamõisa or kunninga mois (king’s manor); Katharinental, Katarinental, Katharinenthal, Cathriindal and Екатериненталь (various German and Russian permutations of Catherine’s valley/dale); and микрорайон Кадриорг (Kadriorg microdistrict).
Jüriöö (Jüriöö)
After Jüriöö ülestõus, the St. George’s Night Uprising of Estonians against the Teutonic knight invaders starting 23rd April 1343. Although there is no longer a street of this name, despite attempts to have one (see Vahuri), it was the Soviet occupation renaming (1982-1994) of Seli and now the name of a park to the east of Kantsi, just off Peterburi. This was also one of the origin events of the Blackheads (Mustpeade vennaskond), a Brotherhood or minor guild (see Pikk 10) whose legends include its being involved in defending Tallinn (then Reval) from nasty locals trying, unsuccessfully, to remove both foreigners and Christianity from their country. Originally founded in the 14th C as a military guild responsible for civil defence, particularly during the Livonian War, see Marta, as well as city watch and policing, evolving into a mainly social organisation after the Great Northern War. The Brotherhood was dissolved by the Soviet occupiers in 1940, although some members escaped and managed to keep it alive in Hamburg, Germany.
Anveldi J.
(Jaan Anvelt, 1884-1937)
Also known as Eessaare Aadu, Jaan Holm, Jaan Hulmu, Kaarel Maatamees, Onkel Kaak and Н. Альтъ. Estonian revolutionary, writer, leader of the Communist Party of Estonia, Premier of Soviet Estonia, died as a result of persuasive cross-examination in 1937 but blessed to be redeemed as a “good communist” by Khrushchev. One of the rare Estonian communists to have a Wikipedia page devoted to him in Tamil, see ஜான் ஆன்வெல்ட், and if you don’t find that writing beautiful you have no soul. Soviet era renaming (1957-1991) of Kivisilla and Reimani V.